I have had first hand experience with Rezt & Relax.
What's mentioned online are 95% true but incomplete.
From my experience, they are indeed expensive - At least 40% more than other IDs. (So for a 30K renovation quote u get elsewhere . They will charge you 42K).
Workmanship is bad. The qualities did not matched the extra amount of money paid. 2 months after we moved in , carpentry work start to show sign of cracks.
Designs - From my opinion, not a designer company but a bunch of contractors charging well above designers' fees. Basically, the end product is your own design.
Customer service - You will see the true color after you paid the 20% down payment. My ID became arrogant and sloppy as profit is locked.
My advise ... stay clear.