Did you use the standard hosebib or the new Aquor's?
Whatever came in the kit.
The kitchen one was easy-peasy. Just the faucet.
The first bathroom one was a pain. No room to get in underneath.
Couldn't figure out how to disassemble the old drain stems with the plunger lever. Not a damn thing in the "Engrish" instructions.
Finally worked out what I needed to do but then couldn't reassembly the P-Trap section again. Finally figured out with the new set, I had to cut off an inch on the old PVC to get it to fit.
So I'm hoping the other 3 bathroom sink will go the same so hoping that will go smooth.
All in all, I hate plumbing.