Most certainly the best dental work and staff. They make going to the dentist and getting a crown almost an enjoyable experience (let's be honest, it's still the dentist...).
The little touches help the experience - lip balm application mid-procedure, bottled water on arrival, superb magazine selection (but minimal waits mean you'll likely not get far), pillows, post visit calls to make sure everything has gone well.
Scheduling is also super easy. They've always been able to fit me in very last minute for whatever my needs are.
Bottom line: quality work, including cosmetic dentistry, in a nice modern setting with professional and friendly staff.