I just finished self-publishing my book with Create Space. Overall I was happy with the customer service. I paid for their additional services (Editing, Book cover design, promotion and press releases...etc) In fact it was just listed on the Amazon site this week. I still have some steps to go through on the publicity side of things.
Some things I had issues with is the process is not as fast as you might be led to believe. Maybe it's different if don't use their services regarding editing or book cover design and so forth. Since this was my first "real book". I opted to use their services for everything for a smoother transistion.
All files or manualscript had to be in a WORD doc. which I didn't mind but when I got my first digital proof I saw errors which weren't in my original documentation. There will be a lot of back forth via email and every change takes a week or longer to process. However I must say I am happpy with the finished product. I plan to publish a hub about the whole experience.
I never heard of BookBaby. Best of luck!