I've had my Alcatel Idol 4s since it came out in November. Overall the performance has been great since the beginning. I have seen the most improvements on Continuum. When I first got the phone I couldn't use the video on MLSSOCCER.com That was a big deal for me because I wanted to watch live games with it. I'm not sure when the switch happened but it works great now. After the creators update, watching videos on the phone itself has become quite annoying. It blacks out at the beginning of videos and also when I switch it from portrait mode to landscape mode. That's my biggest gripe right now. The phone itself has been a pleasure to use. I never have problems with lag or freezing. It's an extremely powerful phone. I'm still grateful that I made the switch from Android to Windows. I won't go into it here, but the windows platform and live tiles have increased my efficiency and effectiveness as an Insurance agent 10 fold. Overall I Love my Alcatel Idol 4s.