It was a good experience. The smell of acrylic from the station behind mine was unbearable, so the therapist found me a mask to wear, which really helped. The actual shellac removal I found a little bit rough, but effective.
The gel polish removal was done, however, it seems like the salon had issues with scheduling and I was served by 3 (!) different technicians for such a short treatment. None of them seemed professional, I had a few painful moments.