The i6012 is a really really bad tab. The good part about iball tabs is the presence of a full USB port and an HDMI port(i dont think any other budget or premium tab gives these). It is sleek and the batter life is good.
Now for the bad part:
The tab is REALLY slow, despite having a decent processor. When connected to the internet(via wi-fi), the tab freezes for about 15-30 seconds!
When multiple wi-fi options are available, the tab keeps switching between 2 networks, and you are just left without internet.
Please consider other tabs like karbonn or hcl. If you must consider iball, consider ONLY the performance series(the more expensive one) and NOT the workhouse series. this one is more of a mule than a workhorse!