I updated my S5 and it definitely has more bugs and the camra keeps freezing and some things are taking forever to load. But definitely a better design. Oh and also the battery is dying faster and gets so hot easily.
I haven't updated it yet since I kept hearing about memory leaks and battery problems with the Moto X (2014). Anyone with one upgrade yet? The constant reminder prompt is making me want to upgrade just to get rid of it lol
5.0 had memory leak issues which made things seem sluggish and caused the phone to heat up a bit. A factory reset fixed the bugs for most. 5.02 has also fixed these issues.