They are pretty good for their purposes, running game or dangerous game scopes. However, their price far outpaces their quality. The Habicht above along with the 1.5-4.5x20 Zeiss made in the 1980s and early 1990s were the highest quality 1" tube dangerous game scopes that were made.
So if you have a vintage rifle that has very expensive german claw mounts and a 1" tube, you can either replace those $1200-$1500 claw mounts with new ones and use any optic you wish, or you can pay an ultra premium for the optic above that is going to be lower quality than anything new by a wide berth, but works with your vintage mounts.
Make no mistakes, they are not $400-$600 quality optics because of their clarity, they are priced as such for their utility on vintage 1" rifle claw rings. If you don't have that essential requirement, don't buy one because you're paying a lot for a benefit you do not need.
There are many superior 30mm straight tube scopes out there. I bought a Schmidt & Bender 1-4x24mm dangerous game scope on eBay for $660...many orders of magnitude superior as a used alternative.