I looked at renting one and I ended up buying one from satphonestore.com. I have a 9505 and have had no problems. I bought their 1 year plan with 222 minutes. I use it more than I ever thought I would because I do not have a cell phone and there is no service.
Hope this helps. I will be using it to phone home when I get my bull in the Bob in a couple of weeks! Kevin