Sam's Limousine Service?

Has anyone used Sam's Limousine Service in Houston? We have a group of 11 needing transport from IAH to Bayport Cruise Terminal, and their quote is less than it would cost us to take 3 cabs, so I'm tempted, but I can find very few recent reviews online.

Thanks in advance!

I've used them twice for transportation to/from Houston Hobby to Galveston when cruising on Carnival (four passengers each time). They were GREAT! I'm booked now for a November cruise on NCL and thinking I'll call them for a quote. Wouldn't hesitate to use them again! :)