Does anyone have experience with Ready To Assemble cabinets? We'll be gutting the kitchen in our new home and we're looking at RTA cabinets for the cost savings vs. prebuilt cabinets.

We're looking for a shaker style white and/or gray finish. (white for the main, gray for the island)

Also if anyone has quartz counters. How do you like them? Any pros or cons or better options in your opinion?