This pasta cooked up just as easily as any regular wheat penne noodles. Boiled for a few minutes until perceived al dente, no issues other than a little foaming similar to what I've seen when boiling beans (which makes sense since Lupin flour is legume-based). The structure remained sturdy while I mixed it into my dish, no evidence of re-hardening once they'd been exposed to the air for a few minutes, or any softening mushiness after having marinated in the diced tomato and garlic dish for a few days.
The taste is different than wheat pasta (obviously, to be expected), but I did not find it unpleasant. No offensive gritty or graininess like whole wheat or oat bran pasta, but not as blandly smooth as regular pasta. The best way I can describe the overall texture is chewiness with stickier compressibility more similar to mochi dough than the regular more rubbery springiness of regular wheat pasta.
I really enjoyed this pasta and I would be happy to indulge in it from time to time in the future. My only regret is it that it is not more competitively affordable compared to regular pasta, though it IS competitive compared to other dried high protein penne.