I fitted this to my carbon fibre diverge which has lower rack mounts but no upper mounts, the rack was very easy to assemble and mount and has so far served me well on my commute. I use a tailfin rack on my dedicated bikepacking bike and although this is similar it's nowhere near as versatile or well engineered as the tailfin but considering the price differential the ortlieb quick rack is fulfils its role perfectly and I'd recommend it as a solid option for people on a budget.

Expensive, but worth it. Excellent mounting on ortlieb carrier. See.s to be robust construction