Great customer service. However, I booked the 1 Hour premium teeth whiting package session and did not see a difference. I left very disappointed. I’m not sure if bc it not the same technology or gel(hydrogen peroxide) they use is not strong as regular dentist practice bc of restrictions due to this not being done under a license professional/doctor. I really had high hopes. Fyi, I had my teeth whitening done at dentist office in the past and saw a huge difference from 6 – 8 shades.