Weight loss Balloon experience?

I have been reading a learning more about this procedure. It seems like a great option for those who need a little help. There are a bunch of compaines doing the weight loss balloons but this is the only one that seems to have info on all of them balloonweightloss.com Has anyone had these? What are the pros and cons? Would you do it again? Which balloon did you get and why? All the ifo I could get would be great!