I've been disappointed by the service.
The site is beautiful but the information has no added value and it is just interesting for the newbies (which is the vast majority of travellers anyway).
There was a guarantee of 100k miles even for non US people but as a non US guy, and without the possibility to enjoy the CC deals, all I saw was just a few 100 miles offers for surveys and sign ups. I haven't able to redeem more than 1k miles (and the worse thing is all these miles are in different accounts) in two weeks which is far from the garantee.
There are a few videos which explain the basics to people new to this world but nothing really original.
Chris is a great guy and he writes good articles but this service is really overpriced.