Car Service with Car seats in Ft Lauderdale

Hey guys!

This is a really niche question. We are looking to do a Disney cruise in November out of Ft Lauderdale. We would like to do WDW before the cruise, and have been looking into options to get down there. We'd really like to take the Brightline, as it would be more relaxing than driving (with our 2 toddlers) and would make it so we don't need a rental car. That being said, we need to get from the Brightline station to the Marriott Harbor Beach hotel, and we will have our 5 and 2 year olds. Can anyone vouch for a car service, with car seats, that is reliable? Its a very short drive, we just would rather not have to bring car seats for that small of a car ride.