I will compare this stand to the Beyerdynamic GST500, which is a very high quality stand made by K&M.
1 - The metal base is very similar with the only difference being it is a little lower mass, but it is still high enough and heavy enough to be considered a quality mic stand. There is also slight variation with the mould of the plastic parts that hold the legs, but they are of equal density and thus quality.
2 - The rubber feet are a size smaller than the higher priced K&M stands but still of the same quality.
3 - The twist grip sleeve is a light plastic. It seems lower quality than the regular K&M grip. I believe this could be an old design of the sleeve which they have updated. The grip is the same across the entire range of K&M stands except this older version (see the cheap 25905 and 21070, and the more expensive 21090. All the same sleeve.
Now the things that are the same.
Literally everything else is the same.
The tubing is an exact match. I took them both apart and checked every detail and they came from the same machine.
The locking mechanisms on the boom are the same exact ones.
The small plastic grips that go inside the center pole to tighten the extension pole are the exact same ones.
So the only difference between this stand and the more expensive stands are the plastic twist grip, the mass of the base, and the rubber feet.
The updated K&M twist grip is available on this site so can be easily updated and still be cheaper than the other stands.
So don't worry, this stand is definitely worth buying.