I bought the belt over the summer to replace the existing belt (BTW it was a Car Quest OEM belt and still solid at 70K miles). I have the Special Value Purchase model Aveo with a dealer installed AC. When I tried to install the new belt it would not go on. I had two choices, the belt was too small or the parts guy gave me the wrong length. I never took belt back and used it for this setup. The dealer installed AC has the compressor slightly out from the factory installed AC hence the bigger belt.
@Rabbit (thanks for the advice) do you know if tension should be halfway point ideally? I don't have experience in this area. All my experience is setting up belts on VW Beetles using a V-Grove and washers to change the pulley ride height.