Anybody have any experience with deals from sites like this? (WagJag)

So, this deal was recently brought to my attention. It sounds way too good to be true. My friend has already gone to the salon in our area and she says it's legit. I guess you have to pay for the deal online, then pay for the taxes of it at the salon. I really want to do this but I'm afraid there may be hidden costs that they dont tell me about (I am going for a consultation, which is free, this Monday to ask questions, but fear I wont get all honest answers). Has anybody had any experience with too-good-to-be-true deals like this before?