I went in after not having been to a dentist in years, and found that it was an impressively good experience. All the employees were very nice, they were quite willing to explain everything they were doing, and no one chastised me for having been away from the dentist for so long.\r
Be prepared to ask questions about what they're planning to do if you have preferences (e.g., they default to using tooth-colored composites for fillings, which have the benefit of not requiring as much tooth be drilled away as silver amalgams but are more expensive), but everything they recommended for me seemed logical.\r
You should also be prepared to wait at least 15 minutes in the lobby and about that much in the exam room, but once I was in, I never felt like they were rushing and being dangerous, or like they were unwilling to take the time to answer my questions. They're also willing to fit you into the schedule twice in one day if you come in to be examined for pain, so that you can be treated quickly.\r
All in all, I found that everyone there was kind, professional, and accommodating. After this experience, I'll have no hesitation going back in six months for another cleaning.