Well i have used the A10 for about 25 days now and i think i have made the right choice by buying this. Its better than explorer, games are smooth (have played nfs most wanted). I don't expect it to be getting the Jellybean update, so you will be stuck on ICS if you buy this.
The only thing that it is lacking is the number of custom roms, HTC explorer had a lot of them.
Here are a couple of videos that i made, you'll get a feel of the phone.
Gaming performance: NFS Most Wanted on QMobile Noir A10
Closer look: QMobile Noir A10
Here's the Unboxing thread that i posted: Q-Mobile Noir A10
People say that A10 has hardware issues, but i haven't faced any up-til now.