The downside of Shellac is that they really don't have many colors to choose from, and I am the type of person who likes bright and fun colors. My Shellac manicures have all last about two weeks, and they really do make my nails a lot stronger when I take it off. It is nice to have a lighter/neutral color on the nail, because then it is not as noticeable once the nails start growing out. Most people go to a salon to get their Shellac taken off, but I've always just peeled mine off at home. I know some salons charge to take it off, which I think is ridiculous if you got the manicure done there.
Other than not being able to find the perfect shade of milky pink, overall I have been pretty satisfied with my Shellac manicures. If you know of any good light pink colors for Shellac, please let me know!