I am in the process of buying via IA on Ebay, as well. Into the closing process, I saw all the negative stuff about them and their closing company. My personal experience has been that they are severely disorganized and therefore, slow.
I recently contacted the closing company about my purchase and was told the deed was sent for recording and that they would let me know what that was done. I looked up the deed on the county recorder/assessor site and saw that it was recorded a few days before that. So, I paid the county $15. for a certified copy, which came in the mail the next day.
I have since contacted my resort and told them I have the deed in my name, my closing company is slow and disorganized and asked if I could bring or send in the deed to get my membership going. They said that they will call the closing company on Monday. At any rate, I do know that I own the TS. Hopefully, I will be able to use it before the next bill comes in the mail for 2012 dues.
IA actually hasn't done anything wrong. They told me the closing would take 60-90 days and it has been less than 90 days. I just can't stand the waiting and having to check on what is going on. I'd rather pay more to buy from an agent that pays attention to their sales. So, that is what I did on my recent WM purchase.