Check it's been regularly serviced, missed oil changes or wrong oil used would be red flags to me, other than that they are IMO really good buys.
The problems are generally around the Carbon build up on the TFSi head, and the 1.8 is better than the 2.0's for this issue and oil sludge build up if the wrong oil was used. Anyway by 2011 most of these issues had been ironed out. It sounds like a high mileage example, it's the short journey low mileage examples I would worry about.
The B8's were much better than the B7's but the model years overlap so I'm not sure exactly what you are looking at.