Depends on what's ur primary usage.

Been using 532 for few months now and love it. Even tested Win10 preview before and it runs fine (except few uncompatible apps).

For day to day usage is pretty good.

WeChat however drains a lot of batteries. Not sure if just this model or same with other Lumia models.

Games runs smoothly too. Most games that it but I haven't found yet any games that kinda slowed using the phone. Not that I game much on mobiles though but all games that I downloaded for my 5 y/o daughter la.

But Sonic Dash, that Minion games, Temple run all run flawlessly.

Camera is okay la for it's price.

I don't really use much apps but most of the issue I found (or I think) is on the apps sides rather than the phone. This is because the apps may not be fully updated for windows10 yet.

Stuff like unable to save number/name from whatsapp etc.

However, so far all the top games are compatible.

WeChat somehow takes a while to load both with windows 8.1 and windows 10 and eats up battery a lot (I asked ppl who use android they seems not to have this problem).

All in all I think windows phone are suitable if you want to use it more for office works but totally for fun and games they're not much.

For office apps they're great.

I'm using the default Here Map & Here Drive. Never lost once. Not sure how much accurate though..