We are considering a 12 day Crystal Harmony sailing to Alaska from SFO this summer. We love Celebrity but they do not offer 12 day Alaska from SFO iten.(we love the added sea days) We love good food and excellent service, but we do not like ships too dressy or snooty. We will be sailing with our 15 year old son and I wonder if we will "feel comfortable" on this ship or it too formal for us? We currently have a suite booked on the Amsterdam(have not sailed HAL in years)and on Celebrity. We love sea days, but don't want to feel out of place due to our casual dress . Is Crystal worth the extra $$ and will we feel comfortable with our fellow passengers? Suggestions or thoughts?