I had to return the first one I received as it had an issue where every time it woke up, it would automatically right-click. Very weird. I exchanged it for another and the second mouse doesn't have this issue.Overall, I would say this mouse is fantastic. I've been gaming and working with Roccat Kone Pure Ultra mice for over 10 years (5 years per mouse) and the right-handed shape of these mice is just perfect for my smallish hands.I was sad to see that Roccat was bought by Turtle Beach, but decided to take a gamble and stick with the spiritual successor of my favorite mouse, the Turtle Beach Pure Air - and I'm glad I did!The form factor is still exactly the same, which is fantastic for right-handers with smallish hands. While the previous Roccat version was already pretty light, this mouse is even lighter at 54g (and even 10% lighter than the highly lauded 60g Logitech Superlight 2).This isn't my first wireless mouse, but it's my first daily driver from the wireless camp, and it works great with the little supplied dongle. Professional reviews complain about the battery life versus other mice but for me it's fine. I charge it less than once every two weeks with intensive use. The supplied USB cord is USB A to C and is a very nice, light-weight braided (Paracord?) cable, making the mouse quite comfortable to use wired if you forgot to charge it overnight.Its max polling rate is 1000Hz, both wired and wireless (with the dongle), which I'm perfectly happy with. Some high-end mice go up to 4kHz, but I find that to be far beyond the point of diminishing returns. Most gaming monitors cap-out at 144Hz, so I don't see the point of updating your mouse position 30x more often than your monitor can show you. I admittedly haven't tested the performance over Bluetooth though, but I can't think of a scenario where I'll need that.Importantly, the click on both the left and right buttons is very good, if not great. It feels like my 5 year old Roccat's clicks are just slightly more sensitive, which I like, but this could be due to age and it's a close call either way. The specs list that this mouse has optical switches for both primary mouse buttons, but I can't say if this has improved anything. They just work well. The scroll wheel is actually quite nice, with a soft, gentle stepping as you scroll instead of harsh, clicky steps or completely smooth scrolling. The extra side-buttons are fine. I haven't used them much in gaming yet, but I can't foresee any issues. The DPI-switching button is at the very front left of the mouse, which I can't reach without releasing my grip. Therefore I wouldn't be comfortable trying to quickly switch DPIs mid-game so, while I don't do this anyway, it might be something to be aware of if you do.The Swarm 2 driver software is much nicer to use than the old Roccat Swarm software, although a few minor options have gone missing such as double-click speed. Of course you can still simply set those generic settings up in Windows. Popular options are all still there, such as configuring your lift-off distance (which is set deliciously low by default), polling rate, and DPI presets. It also shows you the current charge and handles updating the mouse and dongle's firmware at a click. The only thing I'm missing is more flexible lighting options for the logo, but I'm particularly picky about the look of my setup and the options are probably sufficient for most. Also, my hand is covering that 90% of the time and after a minute or two of idle time it switches off to save power, so you hardly see the lit logo anyway. And, as a nice little bonus, the logo is completely invisible when the lighting is off! It's surprising that this is one of the only mice that was designed to be able to hide the logo entirely if you wish.With the phenomenal ergonomic form-factor, super-light weight and pleasant buttons and scroll wheel, I highly recommend this mouse over its doubly priced counter-parts. Just be sure you're not a lefty and your hands aren't too big!