The SteelSeries Rival 700 is one of the most ambitious mice I've had the pleasure of using. It builds onto a mostly solid base by adding an OLED display and incorporating tactile alerts through the GameSense feature. Vibration isn't something usually seen in a mouse, if at all.
Unfortunately, the mouse does have a few potential shortcomings. The largest issue is the button that's supposed to go under the user's thumb tip. It's both awkwardly placed and doesn't have the same high-quality click as all the other buttons scattered across the Rival 700's body. The scroll wheel's light feel and heavy clicks feel a bit jarring, too. Finally, the weight and price of the Rival 700 are pretty portly for a gaming rodent. 135 grams is heavy for a gaming mouse, especially one targeting CS:GO players. The $100 price of the Rival 700 could be hard to look past, as well. The mouse has a high-quality build and includes some nifty features, but it's still a hard sell in my eye for that price. Just three games support SteelSeries' GameSense features, and, as I mentioned, we've reviewed similarly high quality mice that go for half the price of the Rival 700.
The OLED screen is also a neat idea, but it's of dubious value in practice. Gamers have little reason to look away from their screens during intense play, and no matter what stats the Rival 700 can show on its tiny screen, they're not worth peeling one's eyes away from the action for. In fact, removing the OLED screen could help some with reducing the weight and price of the mouse. Fix the feel and position of the forward mouse button along with that change, and you'd have a much more tempting gaming mouse.
Even so, all the positives of this mouse shouldn't be overlooked. It feels great in the hand, all the buttons except the forward side button feel wonderfully clicky and responsive, the software is clean and powerful, and there are a number of modular customization options available to folks who want to change up the Rival 700's look and feel. More importantly, the Rival 700 proves that tactile alerts can not only work in mice, but significantly add to the gaming experience. I really hope haptic feedback becomes a more standard feature in gaming mice and is commonly supported by PC games.
SteelSeries has actually implemented much of my wish list in another product. It recently introduced the Rival 500, which drops the OLED screen, changes up the button layout, and clocks in for just $80, all while sticking to the same general shape and keeping the tactile alerts. Now, I haven't tested out the Rival 500, so I can't say whether the buttons are positioned well or feel as good as the Rival 700's. However, if the prospect of tactile alerts in gaming mice sparks your curiosity and you'd like to try it out for yourself, the Rival 500 might be worth a shot.