I use a Behringer mixing board. Xenyx X1204USB 12 channel. It was about $30 more than this interface you're asking about. I needed more inputs than you do, but having more inputs than needed is always a good thing, expecially in case a pot goes dead.
Look up this boards little brother the 1204USB. It's about the same cost as the 2i2 (just doesn't have any onboard effects like my board above which are better handled by software anyways).
Honestly, if that seems like too much, just search amazon for mixing boards. Sort by price low to high and filter only 4 star or higher reviews. Any board by Behringer, Alesis, Mackie or Peavey will serve your purpose handily (just make sure you buy a USB board)
Or if you feel like going the expensive route, pick one from Allen & Heath