Yes, they are pretty good wheels, and you're correct it is a Shimano hub. They seem a little heavier (haven't weighed them) than my Spinergy wheels, but I think they'll make a good backup pair of wheels for rainy days and such. I didn't know Weinmann only built rims, thanks for that. I was only curious as to where they fit in the performance spectrum.This looks like a custom build. I believe Weinmann only makes rims, not full wheels. The hubs look like Shimano.
I can't say I've seen these. I doubt that is anything wrong with them if that's what you're concerned about. Spoke count is a very reasonable 24 front/28 rear. They look almost new.