The mouse is great in all honesty. You get what you expect from this. However, i do not see the need for 8000hz polling on any mouse as it is a gimmick. This works great with 8000hz but i am using it on 4000hz. The tracking is great, the web based software is quite easy to use and has options such as choosing a mode specific to environments where there are multiple wireless networks or signals that can cause interference.
I ran some normal tests to check if there is any noticable jitter or lag spikes but it works flawlessly and I never experienced any stutters. One thing I will mention is that using this at 8000hz compared to 1000hz, the CPU usage does go up(something to keep in mind if you do not have a good CPU).
I have not had any issues with the scroll wheel either, although I wish it was placed a bit further ahead(I have larger hands and initially had trouble with scrolling because the wheel placement is further back compared to my older mouse)
The battery life is great so far, I use it on 1000hz for normal use and 4000hz for gaming. It only drained 6% of battery on 1000hz for a total of 5 hours of use. I think it is a great mouse for the price and RAWM have something amazing here. The delivery was quick, i got the mouse in 7 days. I am happy with my purchase!