I have never used them personally, but we have friends who have in the past, they used it to go over to Europe, but they were camping so they didn't have hotel reservations and other things to worry about which was good, cause they did alot of waiting for flights.
Love Space A - I went home from Germany last month...I have another trip planned at the end of Sept. If you do your research it works....but be flexible! And always have a back up.
I agree with the others, just do your research. I would explain to the hotels that I was booking this tentatively. I would also speak with the hotels and see if they could work with you on your arrival. If you go during a low season then I don't think you shoul have any problems. ENJOY your trip.
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