This is a great quality shirt. It is very nicely personalized and yet stylish and manly. I wasn't sure if my husband would wear a shirt with his grandchildren's names on it, but he loves it and the compliments he receives.
I chose the black t-shirt with white writing. It looks very nice, but not super-luxurious. Looks like the same level of quality as a printed t-shirt from any local tourist shop. My dad loved it. It's great that you can choose whatever word you want, since not everyone is a "grandpa".