I have been to two really fun 'beginners' classes at Rhythm Cycle, and everyone there has been helpful, kind and inviting. Since I am new to spin they helped set up the bike, and provided some help.
You are able to use their clip in shoes, and everything is clean and new.
The music is great, class is fun and goes by quickly and is a great workout! They seem to run good specials which make it very reasonable to get in regularly.