I scraplift and I have scraplifted from my own layouts as well. I like the end result most of the time. It's a great method to learn new techniques, and to get pages done faster.
I'm a big fan of scraplifting. I mostly "scraplift" a layouts design or pick out a couple of elements to scraplift. I have also scraplifted the design of my own layouts and was pleased with the results.