and in case it didn't come through ok - /sarcasm
Like the other day during my 6-month dental exam the hygienist congratulated me for my obviously well-tended mouth before jack-hammering enough plaque to fill a bushel basket. After that the dentist came in and told me I needed a cap on one of my four remaining teeth. They congratulated me again. Cost me $200, the cap's another $800.
Always hedge criticisms with cheery, up-beat encouragement; insert your critique between two compliments and garnish with a smile.
If you don't do this you're liable to get a knife in your back.