I purchased a car from the dealer and I have returned several times for maintenance and repairs. They are no worse than most car dealers as they tend to have sales people standing around outside waiting to hound potential customers. They obviously make their money in the service department (as all dealers tend to) so be careful about if you decide to let them service your vehicle.
Do not believe anything that anyone this dealer says unless you get it in writing. Most of my experiences has been decent, but the service department tends to be too eager to suggest many things to separate you from your money. Some of the suggestions border on being questionable, however, make sure you stand firm and call around (and search Internet) to verify pricing and necessity of "suggested" work.