I know, I'm bumping up a 2-year-old thread, but I found this thread helpful when I used otel.com this month, so I figured it might be useful to archive my own experiences for anyone else who runs into them.

Anyway, I found these guys on the web and their rates for a particular four-star hotel in Lyon, France were quite amazing ($200/night, refundable, w. breakfast, compared to $275/night non-refundable w. breakfast, which is the best rate I found elsewhere, including the hotel website). So I booked with them. Within 24 hours, they came back and said my room was confirmed, and they chaged my card. I printed out the voucher they sent, brought it to the hotel, and checked in and out with no problem.

Everything worked fine, the price was great, and I'll definitely use them again.