Done, done, done (well, almost)
I installed COREtec Pro Plus XL Enhanced in Cairo Oak. They are waterproof and interlocking with cork backing. They were flexible which made for easy installation.
It took me 6 weeks while working from home and living in the space. I still have to paint touchup the baseboards where nailed. I also plan to paint the stair banister as that wood color doesn’t match at all. I installed the entire ground level with no transitions.
The most time consuming part was building up the subfloor where there was carpet (1/2 inch low).
The worst part I did was the sloping from old sheet linoleum to built-up subfloor (3/32 inch). I didn’t slope enough so the floor sounds different in those areas (sloped three feet but should have been six).
I watched all the videos before I started and asked multiple questions. Very happy to have found Joe and Laminate University. Also, very happy with the final product!