So, I messed up, Xperia z3compact user looking for as good windows phone..

So recently, yet again I've had to send my z3 in for a headphone repair. To tide me over I spent £100 on a second hand lumia 830. Long story short I've had android phones for ages, mostly Sony because I believed they had the best camera /size but this windows phone has seriously surprised me!
The camera in near mid and far distance just blows my Sony away, it's just a tad slower but takes far sharper and better pictures. I've had my Sony since launch and I have taken amazing shots, but they've been serious effort and even then mostly down to luck, I think at the back of my mind I'm kind of glad I didn't pay extra than what I did for the phone because the camera really has been a let down.

Now I've got my Sony back and it's just been sat waiting for me to log in. I really enjoyed the tile design of 8.1 and the camera but missing apps and no good music player plus lots of slow downs have had me thinking about trading them both in for something else...

What do people recommend? I'm in the UK where it seems both Microsoft and Google don't have everything working the way they advertise..