I have had the K& M 18810 set for several months now and I still think it's the best stand I have ever owned. Build quality is amazing. Very sturdy and holds lots of different sized keyboards, from Monster 88 note master keyboards, to very small synths. Its also good for height adjustment. I have the second tier installed and together makes an amazing addition to an already amazing stand. I plan to buy another in the near future. You can't go wrong with K&M.
Really satisfied with these one. I order it few months ago and i'm really satisfied with it. Very well made, stability is fine, handling is fine. I use it mostly in studio, so don't know how would it be on the road, in the vans, but for me is nice.