I had several at a time a few years back. They would give a good shave just like so many other brands - marketing and contemporary perception drive prices. The truth of the matter is that not many of them are different in any way other than small differences in hardening/tempering and grinding accuracy and technique. I know it messes with the conceived or at least present perception of one's own collection to think so, but that's the truth.
Any razor from Solingen, Issard, Eskilstuna or Sheffield, or any number of defunct American razor manufacturers can be made into an excellent shaver if the blade isn't too far gone and it wasn't bent or twisted in the hardening and tempering process.