I agree. I tried Win 10 Mobile once on my 521 and I was done with it after the first hour. It's a good product, but having less than 1 gb RAM and no front camera isn't really "great" right now but I guess it's all a matter of opinion. I stand by my opinion that the 532 is like a slight upgrade.My 520 isn't loving Windows 10 Mobile but it's still about as good as Windows Phone 8.1 was. I take utmost care but the performance is degrading, just a fact of technological life.