I am learning this construct 2 by creating sample games currently. I have exported it via cocoonJS and tested in my mobile and it runs fine. But I have not exported to google play yet. Soon will. Other than CocoonJS you have crosswalk for Android.
As there are loads of users creating games for PC now here(I believe), the mobile developers here comparatively less. But I have tried playing games which has been developed by construct 2, it is good. Still people are creating loads of games using Construct 2.
As I have ran through manuals and forums here, I guess the support here is good (if you ask properly and wait) and the tools itself is good comparing to other tools like this as far as tool efficiency, price and supports were concern.
To be honest, when I am starting this construct 2 I have many questions but I create games coz like it. I am not pro in it but like creating game. So started learning here. I didn't know how to export it to android, I didn't know will it work properly. But I don't see many bugs regarding the exporting topic. I
So what kinda a game you are looking to create. May be people can spot some help or examples based on that.
One more thing: this is not exactly a HOW DO I question. You should post these kinda questions next time in the Construct 2 General forum.