I've only gone once, but my technician was fantastic. She made me feel very comfortable and at ease - which isn't the easiest thing to do while you're pushing crap out of your butt through a tube. She also talked to me about my diet in general and possible deficiencies I might have based on what she was seeing in the tube and what I told her I consumed on a regular basis.
All in all it was a very pleasant visit. The decor was nice, the rooms were clean, and the staff was informed, polite, and professional.
A+