I had a good experience at Belle Du Jour - the beautician who worked on my Shellac nails was extremely friendly, and I was happy with the finished product. Unfortunately, 3 days later one of the shellac finishes came clean off. I was about to go on holiday the following morning, so didn't have time to return or even have the other nails removed. As a result, I was forced to pull the shellac off each nail - a job which was actually fairly easy, making me suspect that none of the nails would have come anywhere near the two week duration I'd expect from this service.