I've had a pretty nice experience with Windows Phone so far. Main problem is that the phone I had was designed for WP8 and when the WP8.1 update came, things started going south mostly because it was more demanding on resources. It's a kinda old phone though, so getting an updated one that was designed for WP8.1 is probably in order soon.
I feel lonely on the poll.
Holly crap who would of know the guy I have known for years also uses Windows Phone :D
I completely agree with you Pecon, I own a Lumia 521 and a Lumia 635, I can't believe the 521 still receives updates even after two years, some of the other phones, like my dad's old iphone 4 stopped receiving updates even though iOS8 is compatible with it thanks to hackers/the guys who make jailbreaks.
I'm just more surprised my Lumia 521 will run Windows 10 once it comes out (Because WP and Windows merged)
I can't wait to get my Lumia 930 though, I have tried Android and iOS but, I definitely didn't like iOS at all though, Android was great though, it had tons of customizability, I find it far by better than iOS.
Windows is still my Favorite though, I just really like the OS, the tiles, accent colors, overall design.