Ask HN: Review my startup, Reservv.com (Appointment Scheduler & Reminder)

Hi, all. I've been working on Reservv for about 6 months now, and just launched it over the weekend. I'd appreciate feedback on the idea, the look of the site, clarity of the site explanation, signup process, etc. The good, the bad, the ugly... I am interested in whatever you have to offer. Thanks for looking!