I got the pewter ones and they look fantastic with my white and silver china.  These are the same placemats that I paid double the price for at Pier One for the teal color.  If you are using a charger with these placemats a simple clear crystal charger looks beautiful so it does not compete with these beautiful placemats and your china.

Pros: They look stunning
Cons: Only conn is that they are delicate and you have to be careful with the beads