I have them. About 10 years old and still looking good. Plywoold boxes. Solid 3/4 wood face frames. The doors have solid wood frames with MDF raised panels. The raised panels look like real wood. They look great for the price. The stain/finish is not as good as a custom cabinet but so bad that anyone notices. Much better than the particle board stuff at the box stores. For $25 they will send you a sample door. Its been 10 years but think I got them here.
https://rtawoodcabinets.com/