My Experience with Windows 10 Mobile Preview
Keep in mind, I am aware that we are getting preview versions for our phones. I just thought that after so many version, the issue I am going to point out that has remained consistent, would be ironed out.
The performance of each version is GREAT when first installed. Notice I say when 'first' installed. After about two weeks of use, features start to stop working, opening folders takes three seconds for the icons within to appear, camera locks up/crashes device, messaging stops responding, etc. At this point a reboot will get the phone to work great again for about 5-10 minutes, then right back to the issues. Eventually a new version is pushed out to us, and it will run great again for a couple of weeks, then the issues show right back up.
Whatever is causing this, I would have hoped they had fixed by now since it is hands down the biggest issue. This is occurring on my 1520 through all the possible mentioned install tactics (hard reset, don't hard reset, factory recovery, etc). Anyone else kind of see the same issue/pattern as I do?