Great idea. I think the pricing is way too cheap for on-site though. You might be able to get away with < $50 for some kind of screenshare, but there is definit

Great idea. I think the pricing is way too cheap for on-site though. You might be able to get away with < $50 for some kind of screenshare, but there is definitely a market for what you're selling and the current market is priced way higher. usertesting.com costs $49/participant and there's nothing interactive about it - you submit a list of questions, and they send you a ~15 minute video of someone testing your product. Your service is more valuable, and your costs will be higher too.