This seems quite nice. It has a solid UI and is certainly heading in the right direction, but lots of work remains to be done. For example, flight booking needs to be integrated, and a smartphone app isn't available.
They say the service is completely free, which IMO is a big mistake - the right approach is to be responsible for all the payments and then charge the user just one time, which not only allows you to add a fee on top (your primary revenue source) - it removes one more pain point for the user.
Wouldn't that require having arrangements with all the carriers?
Also, I probably wouldn't give several thousand dollars to an intermediary, especially when some airlines have "special" policies that apply to tickets booked by proxy (e.g. the proxy needs to request changes, not the end user).
Travelers not willing to do some legwork should not be surprised if they find themselves confined to proven tourist trails. And in fact that's what many people want.
They say the service is completely free, which IMO is a big mistake - the right approach is to be responsible for all the payments and then charge the user just one time, which not only allows you to add a fee on top (your primary revenue source) - it removes one more pain point for the user.