The screen is crisp and gorgeous. Knock on/knock off seems to work well for me and the placement of the power/volume buttons is a non-issue for me. Unfortunately, I do have one small scratch from a pen clip on my screen. Got it the first day. Thought Gorilla Glass was supposed to be more durable???
Speed and performance is UNMATCHED. Apps open quickly and run without any lag at all. I know my Maxx was fast when I got it but I just recently did a FDR on it and compared it side by side and there is no comparison. Go Kart vs Bugatti Veyron (with better gas mileage)
The only thing I seem to miss from my Maxx was smart actions. I made pretty good use of it for turning my WiFi on and off, saving battery, screen brightness etc. I know there are other similar apps, I just haven't tried them yet.
Now the clincher... I have several co-workers that have Galaxy S-4's that are suffering a severe case of phone envy. One in particular switched from an iPhone to the S4 and now wishes he had gone with the G2. At the end of the day, their batteries are in the 20% range while I am still in the 70's.
David