It's a really performance and great phone for the price u are paying. If you are into camera in night settings or taking pictures in low light its definitely worth it.
Aside of sometime random restarts nothing much. This happens once in a blue moon tho can refer back to other users.
The fluidity of the OS and everything is awesome with no hint of lag despite low specs.
If you are like me heavy user for web browsing and just using apps like whatsapp,wechat. I couldn't recommend any other phone than the Awesome Lumia 720 ^^

Haha I was same like you before I got my Lumia 720. Was playing around in the Store many times till my previous ZTE phone died on me. So I decided to give it a try and get a Lumia 720. Everything works fine and well from the first day. And guess what I'm the first Lumia user in my entire class(out of roughly 60 peoples). All see liao also wahh lend ur phone see haha. If u get the yellow color the effect would be multiplied xD I got the black as yellow was OOS.
Overall it is a great phone with ease of transfer. U can sync contact from ur gmail,microsoft,outlook and simcard.
One best feature I MUST highlight is you are able to link mutliple contacts into one Name.
EG: U have Sam from Microsoft with his email, his contact number on your Sim Card and his FB Profile. You can link these account into one Single Name - Sam. Previously I was looking for this function in Android and none has worked well as Windows Phone. So I have duplicates everywhere. It's very easy and helpful for me ^^

The only downside as I mentioned is having random restarts sometimes(dosen't happens always maybe once in few months or so and not everyone face this problem).

So yeah there goes my long essay ^^ but I'm still happy with my L720