SIX MONTH UPDATEI  These glasses are cracking and leaking after only six months of casual use - they have never been in a dishwasher, always hand washed.  DO NOT BUY - they are pretty but useless.
LOVE these glasses!  I am paranoid about broken glass and wanted a set of nice looking unbreakable drinkware for every day. These definitely fit the bill!  They are very pretty, a nice weight, and they feel sturdy. I also like that the tropical design is etched or pressed into the material, not flat and does not look or feel painted on. The photo below shows what I said about them on Facebook. For this review I will add that I am disappointed that the side seams are quite obvious, both to the touch and to the eye.  I was not expecting that, but I can live with it.  Except for that, however, I would give them five stars instead of four.