Q5 is pretty inside out. But I think the TFSI engine is problematic and the electronics in Audi always break down very early on. My friend also had a major transmission problem with his 2011 Q5. The repair was covered under warranty but it can come back again.
The other one in this class is Infiniti. I really like their styling and they are more reliable than German cars. It kills me as I do not buy Japanese cars out of principle.