If that is the only facility you have avail and they have a good reputation, I would do it. First I would go to the facility and watch a few classes, you should be able to do this without having to join.
http://www.bon-clyde.com/agility.htm
I take Kiara to Bon-Clyde Center in Sanford NC, I LOVE it. The instructors are wonderful, you can watch the classes without joining first, they will give you a tour of the facility and answer all your questions no matter how many you have lol, and I had alot! The fee's there are $115 for a 6 week course, so it is less expensive, but centers like these are not in abundance, so if it is nice and reputable, take advantage of it!