The legendary "riddled with bullet holes" design of super featherweight mice is, undoubtedly, in vogue at the moment and in the crosshairs of a lot of first person shooter gamers. These perforated mice do look cool and perform quite well too, but they also accumulate a considerable amount of human matter over time, making regular mice a better option for longevity.
If you like nice and simple mice and are currently looking to replace or upgrade your existing mouse, you may want to check out the SteelSeries Sensei Ten.
The SteelSeries Sensei Ten is an ambidextrous wired mouse with a classic design perfect for those with large hands and those who like the premium feel of a weighty mouse. The SteelSeries Sensei Ten tips the scales at 90 grams, which is the weight range (90 grams - 120 grams) a lot of gamers agree is the ideal weight for a gaming mouse.
Heavier mice do perform better for high sensitivity gaming so, if you play a lot of first person shooter games, the SteelSeries Sensei Ten and other heavier mice like the Rival 500 right up your alley. If you play mostly lower DPI games like MOBAs or MMO games, a lighter mouse definitely helps being more accurate.
For MOBA/MMO gaming, you also want a mouse with lots of buttons like the Rival 500. If you exclusively play high sensitivity games, the Rival 650 is a better option overall because of the weight tuning feature.
The Sensei Ten scroll wheel is rubberized too so, it provides good grip and ventilation, thanks to tiny groove-like indentations on the surface of the scroll wheel that minimizes sweat build up on the fingers.
The Sensei Ten has a smooth rubbery, scratch resistant outershell without any side grips like on the Rival 100 and Rival 300, although the sides of the Sensei Ten are slightly rubberized. The Sensei Ten is a truly ambidextrous gaming mice with perfectly mirrored sides; hence the buttons on both sides. Most mice traditionally have two side buttons on the left side, making the Sensei Ten's 2x2 button grid layout somewhat unique.

With these extra thumb buttons, you can configure the Sensei Ten left side buttons for in-game commands (i.e. melee and chat commands) and use the two buttons on the right side as multimedia buttons (i.e. play/pause and skip). There is a laser printed etching on the left front side of the mouse with the symbol 天 (pronounced Tiān), which represents the concept of SKY in Chinese mythology.
Inside the SteelSeries Sensei Ten, there is a TrueMove Pro optical sensor, which is custom made by SteelSeries and PixArt. The TrueMove Pro picks up where the TrueMove3 and PMW3366 optical sensors left off with more precise tracking. The TrueMove Pro also allows the Sensei Ten to track at higher CPI (18,000 CPI).
Speaking of CPI, the CPI button on the Sensei Ten is located behind the scroll wheel next to a small white led. If you're wondering about CPI, it is the same as DPI. The term CPI is more accurate to use though, because it refers to sensor sensitivity. That said, both CPI and DPI are used interchangeably to refer to the same thing - mouse sensitivity.
The SteelSeries Sensei Ten has five default CPI modes to choose from (400CPI, 1150CPI, 1200CPI, 2400CPI and 3200CPI). Some mice have two CPI buttons, making it quicker to cycle between the CPI modes because you can toggle both directions (up and down).
The Sensei Ten only has one CPI button; hence you can only toggle one way (up). The led next to the CPI button will flash a number of times, depending on the CPI mode you are in. For instance, you will see the led flash white four times when enabling the 1400CPI mode and flash twice when enabling the 800CPI mode.
Some gaming mice with CPI control use a system of flashing colors or led bars instead of a flashing white led (like the Sensei Ten) to differentiate each CPI mode. Both systems work well so, it untimely comes down to whether you prefer remembering flashes or colors. You can reconfigure the default CPI modes via the Engine software and choose the range you want from 50CPI up to 18000CPI (in 50 CPI increments).
The SteelSeries Sensei Ten has two RGB lighting zones: scroll wheel and the SteelSeries logo on the back side of the hump of the mouse. The RGB zones are independent of one another; hence you can have different light colors or no lighting at all, which you can only be disabled from the Engine software. There are four basic lighting effects, including "color shifting" and steady (solid color).
The SteelSeries Sensei Ten is attached to a 2 meter long firm rubber cable with a heavy duty feel. Due to the firmness of the cable, it will tend to kink unlike braided cables. When transporting the Sensei mouse, it is best wrapping the cable around the mouse rather than knotting. The cable is made of plain rubber and terminates into a USB-A connector with a hard plastic plug and the SteelSeries logo embossed on it.
On the base of the SteelSeries Sensei Ten, there are four mouse feet/skates, a hole opening (for the optical sensor), a SteelSeries logo etching and a spec tag with the serial number. The mouse skates are made of PTFE (teflon) pads, which most gaming mice integrate to make it easier to glide the mouse on the mousepad.
These pads really make a difference, especially if your mousepad has a cloth surface, and are typically found along the perimeter of the bottom of the mouse. The SteelSeries Sensei Ten has an extra pad around the optical sensor hole opening. The pads are very thin (~2mm).
The SteelSeries Sensei Ten mouse is compatible with Windows computers, Mac computers and, you can even use it with an Xbox, although you won't be able to use the SteelSeries Engine software with an Xbox. The SteelSeries Engine software is only compatible with Windows computers (Windows 7 and higher) and Mac OS X (10.8 and higher).
The SteelSeries Sensei Ten comes inside a foam cutout, which comes handy for transportation. Do bear in mind though, that the Sensei Ten does not have onboard memory; hence you won't be able to save profiles and lighting customization when using the mouse on another computer. You can buy the SteelSeries Sensei Ten on amazon. Check out the review of the Apex 5 mechanical keyboard.