Borrowed a mates wheels with the BOR XMD333 rims for 24/12 the other weekend. My only criticism of them is that they’re a bit narrow now that we’re all used to wider rims, but I suppose 24.5mm external and 19mm internal width is fine for most for XC use. VERY lightweight though, and tough for what they are. Seemed stiffer than a Stans Crest to me anyway.
Just going through the same dilemma myself actually, cos Superstar also have the Pacenti rims on a build at low prices too. The TL28 looks on paper like an ideal rim, but then I’ve heard they’re a bit soft and dent easily.