I used Windows Phone for a few years back in the day. I did find it a bit buggy (my phone would crash about once a week), but the UX was pretty good. Especially

I used Windows Phone for a few years back in the day. I did find it a bit buggy (my phone would crash about once a week), but the UX was pretty good. Especially at the time, where screens were lower-resolution than they are now, the tiled interface worked really well. I eventually moved to Android, and it took me a long time to get used to it - for a long time I kept thinking that just about everything had been more intuitive in Windows Phone.