Well I think they are gorgeous! I love their expressions. So sweet and willing.

They look to be good citizens, pulling that cart thingy for the first time all year and then letting you ride! How nice is that?

As for retraining driving horses as riding horses, it's actually not all that hard. The barn where I ride takes off the track harness horses all the time and retrains them under saddle. They usually make a very easy transition, so I wouldn't worry about it.