I use it for the past two months.
Stability is huge! Move quasiement not (because I say quasiement not move a rack that is not a rack!) It is not much more than a gibraltar rack and in my opinion more ergonomic and stable. Its curved bars are very practical and are ultimately more sense than straight bars.
Attention on the other hand! It's not the same length. The straight version of a bars of 97.5 cm, while the curve in a 120cm.
Excellent rack, I obviously do it again this choice.