Only concerns .. After buying: right decision!

Background:
I've already tried a few office chairs and sometimes even "Test Winner" for 400 euros had are at my house. These were compared with the 200 Euro-office chairs already relatively good, but the Rückenbeschmerzen or complaints came after several hours. Then I became aware of the Harastuhl and have made a request from the manufacturer via email.
I was then discussed in detail on the phone and even though I only model "HARASTUHL: Nietzsche-WL-V" wanted you rather have me ours "Zenon" recommended.
Why?
For people from 180cm this chair is more suitable, especially for low back pain better (exactly my problem). So I've bought the "Zenon".

Assembly:
Chair arrived as agreed - assembly was relatively quickly (about 20 minutes).

Seating experience:
After I adjusted the chair, I thought at first - uff, funny feeling. But after a few hours I realized that the intervertebral discs and lower back are relieved. I was thrilled by some skepticism. Even the nice saleswoman reported by "Harastuhl" and asked 1-2 weeks after purchase, if everything was okay. That's what I call service!

Long-term experience & Conclusion:
After almost 6 months and about 1000 hours on the chair I have to say that I did not regret the purchase. Clear - the price scares initially somewhat, but one must not forget that you only have a "back" and if you ever have to sit so much - you should make this as comfortable as possible. I'm very satisfied! The processing could in some places may be better (roles sometimes stiff, hand leaning a little wobbly), but for the price and this performance there by myself full 5 stars and a buy recommendation!