Well it makes a cool bike. I don't know if it is a cafe but it is kinda cool.
The cb650 is an odd duck. It started in 79 and went to 82 and was an sohc while the 750 became a dohc. kinda messed up that honda did that. They essentially had a bunch of 550 parts left and threw them together with a few new parts to make it look different. Born out by the fact that a lot of 650 parts will fit into the 550 case.
The ride IS the adventure. The destination is just to get gas!