Having had both a 07 and an 08 in the family here is my 2 bits.

1. There is a design flaw on the front doors of the 08 4 door. Fault is down at the front corner. TBS on it. What happens is that as snow melts the water accumulates down at the front corner, re-freezes, and the when the door is opened the door skin actually bends outward.
2. Avoid the 07s. VW Canada repurchased it. They were outstanding about it really. However, it was conditional on repurchasing an 08.

3. Gas mileage is not great, but power is really there in the 08 models (this unit being a 6 speed auto). If your only doing 20k km per year it's not a big issue IMO.
4. Engine compartment for DIYers later on in it's life looks like a complete nightmare as alluded to by PJ.
5. Handling, braking, ride, seats, stability program all excellent.
Conclusion: Good car while under bumper to bumper warranty which is 4 years and 80k km. Manual tranny probably much better bet long term than "sealed" automatic unit.
