For what they want for that, you can find a REAL nice lightweight TT for the same price or lower if used.
The big problem I see is there is NO propane to that TT.
They show it using one of those little generators. So you would have to use the gen to heat your water?
Biggest problem there is the limited hours you can run a gen in a CG and that many CG's do no allow them at all. And those little gens are 'loud'.
IMHO too high priced for what it is and would put a lot of limitations on your camping.