It is. And the roller is on an eccentric cam, to you can rotate that 90 degree to lift the angle of the guide slightly and do a micro bevel without having to reset the holder.
They are very nice. I use one but they are tricky to get small plane blades to stay in place. Apparently there's a aftermarket bit you can buy to improve it. Someone linked to it in this thread a while back but I can't find it.
I think it's the best one though and it's great to handle.
This looks incredibly sexy.