i own a c635 and i have seen the Hisense u7h in harvey norman. i can say the c635 looks much better than the hisense. also the c635 is Qled and hisense is Uled. lets not be mistaken, qled is not uled. qled is better than uled and Va panels have better blacks than IPS panels. if u are into gaming then go for hisense if u want better picture quality go for tcl.
correct me if i am wrong

Once used to googleTV, u cant live without it..can easily install apps and lots useful functions and supported natively, can easisly cast video and control tv function from phone etc.
Thats why vidaa is a dealbreaker for me and cant consider hisense, also not all streaming apps supported