I have the black and gold one, when I first got it I immediately thought "THIS was $45??!!!" but in a good way, Tolerances are spot on, nothing is loose, nothing is super tight, everything fits and spins perfect, (a lot better than some of the $100+ RDAs I've bought)
Building on it is extremely easy as you would expect. The vertical air holes are nice and work awesome (still haven't had and juice leak through the airholes)
The provided drip tip with the spit back protection, while it does work, very well, is not 100% perfect, but 99% of the time it does it's job and I am super happy with it.
Flavor on it was WAY better than expected (with the biggest air hole slot shut off)
Clouds, this thing pumps them with little effort,
This RDA beat out a lot of my higher end stuff, I've been suggesting it to people who want a really nice and cheaper authentic. I give it a 10/10