Personal opinion, but much much better. Still missing a couple of big names, no banking apps (I just pin mobile sites to the Start menu), no snapchat (if you're into that sort of thing) but most of everything else is on there and it's running better than ever.
The only thing left is to switch to a WP handset when the new flagships come out this fall!
I actually tried windows phone briefly back in 2012. Didn't quite grab me then but I'm guessing a lot has changed since I gave it a go.
That'd be a good guess ^_^ WP10 barely resembles WP7 at this point.
How is the app store going? I think that was a huge sticking point for me when I had it - it was just very very sparse.
Personal opinion, but much much better. Still missing a couple of big names, no banking apps (I just pin mobile sites to the Start menu), no snapchat (if you're into that sort of thing) but most of everything else is on there and it's running better than ever.