I'm still feeling just fine! Just like always. Some things never change.
After fiddling for a while, I find 1800 DPI with moderate acceleration to be perfect for most purposes. Guess I'm one of these people that can't give up mouse acceleration. Without it, things just feel wrong, and my track pad is also affected. >.<
As I've tested... 800 DPI is very slow and is best suited for precision work. 1800 DPI is general purpose, works for almost everything. 2400 DPI if I want something slightly faster. 3200, 5000, and 6400... I'd rather not use them. (By the way, 800 DPI was my last mouse's fixed DPI.)
Running things in Bluetooth mode does mean that I get stuck with 125 Hz, but I don't care about it a bit because I'm so used to it. And I still get extra buttons and adjustments. Good thing I can always plug it in, and it's microUSB-to-USB. The included 0.9m cable works very well with a laptop.
And not having a cable is very nice on a laptop. Same thing for having all three USB ports usable.
What do you think of Canon printers, by the way? After over 500 sheets of A4 paper, and about 30 4R-size photos, I'm very satisfied with what I have. It's been just over nine months... I've never had a paper jam. I can shake my fists on a HP, though.
You don't want to use sens that's too high for you. Feel free to turn the DPI down to whatever feels comfortable. Honestly anything beyond 2000 DPI is totally unnecessary. The DPIs are just going up because companies think they need a numerical measurement of accuracy.
I have a friend that uses 3000 DPI, but he plays like 6 hours of CS a day. As for 8200 DPI or whatever they're up to now, it's counterproductive. In order to make things usable (at default sens, dust particles on a hard surface mousepad would make the cursor jump around), you're scaling it back to a point where the OS starts reducing a large number of tiny movements to a single pixel movement on the screen and you're actually losing information.
At the end of the day, the best way to go about it is to set the DPI to whatever makes it feel natural for you. For me on my current mouse, that's 900-1000. For some people, it's 2500. Some pro-gamers use 400. Don't feel pressured to use something that's uncomfortable unless you feel lower is holding you back.