Hi Chris, I don't have either of these machines, but here is a link to a review of the Port-A-Strop for your interest.
Port a Strop Product Review - Wood Carving Illustrated The carving club I belong to (Prescott Wood Bee Carvers) have a nice honing, stropping and polishing machine. I don't recall the name of it, but will check in a couple of weeks. We meet twice a month so in between I use my leather stropper at the end of each carving session. At some point it would be nice to have my own machine.
Kathy