This is a heavy, solidly built, tall stand. It is great for drum overheads, which I primarily use it for. For 90% of uses it excels.
However, at my practice room I have tested its limitations. The floorboards there bounce under pressure. This stand then wobbles from the base. When this stand is still you can test this by gently pushing it. Even when securely tightened it gently wobbles from the base. But this is only an issue if the stand is made to move in the first place.
I am happy with this stand. To get absolute stability in my unfavourable room I would need to go to the final tier of microphone stands with the most solid bases.
I have several of K&M's standard sized mic stands, but found myself having to record a group of six vocalists singing together. I bought this, and used the extra height and the boom to suspend the (heavy) mic slightly above the group.
The stand was completely solid, and the boom did not droop at all, even though it was quite a long recording session. Another great quality stand from K&M, I expect it will last me for years, as have several of their "normal" sized 210/9 stands.