I just got to demo a 10 on a foiling day that started medium powered and then to lightly powered. My thoughts:
it wants to fly. I tried but could not self land it without anchoring, even when the wind dropped. In this wind, I easily self-landed a 12 drifter without an anchor, to try them back to back. the kite wants to fly. you can run towards it on the beach, kite straight down wind, whatever you want, and it will stay in the air. If you crash this kite, it is either time to go home or you are very very bad at flying kites. I would definitely prefer the Aluula 10 to the drifter 12 in those conditions.
it is crisp. I have not felt this since my old best nemi hp. my former big air favorite kite. It is very direct and responsive. also fast, more like an 8. but crisp is not just about fast. more the feeling that the kite is exactly where you direct it to be. very nice. precise.
it drifts ridiculously. I rode wind swell what felt like directly down wind, at an angle I could not do with other kites. I have flown many wave kites and know good drift when I feel it, but this was a surprise that I kept increasing my down wind angle as a test and then started catching the on-shore swell. and the kite just stayed with me.
Overall, I'm very impressed. I think the 12 will be the most compelling. I have owned and demo'd many 12s and usually hate them, except maybe the nemi and fuel back in my big air days. I never liked any 12 in waves or foiling. I prefer a 9 and make it work. anyway, I hope to demo a 12 as this style could be great for my biggest kite for the wave/foil kite mix. If the price was lower, I would trade all my kites for these (12/9/7), but right now, I only see the need for my largest, 12.