All in all my S70 has been a mixed bag on the reliability front.

I'm at 90,895 miles now and have had the following problems:

ABS controller failure
Power door lock solenoid failure (both front doors
All the engine mounts have been replaced due to failure at one point or another
Drivers side power seat control failure
The padded pleather that the door pannels are made of are bubbling and coming off.
Power steering pump failure
And the ausual set of squeaks and rattles that acompany a 6 year old car.

I must say however, that for it's faults, the car is fast, reasonably nimble and has in the last 2 months very nearly been totalled twice (14K + damage each time) and came out a winner both times with the occupents safe and sound.