I've been on a mostly-Keto diet for over a year now. I dropped from 70kg to 61kg. The lowest I've been was 57kg but I've occasionally been eating pizza while travelling or drinking more with friends. Overall it's been a great lifestyle choice. I feel better. I have more energy. It's easier to build muscles. I weigh less and if all the data is correct, I have a much lower chance of heart disease.
I still meet people who sad low-carb is bad. I'm visiting some vegetarian friends who seriously believe that (and one of them teaches health classes in the Peace Corps!). I've been staying with them a month, eating way too many beans and potatoes. I finally went out an bought some meat on my own and next week I fly out. I'll be so glad to cook for myself again. I've gained at least 2kg while here.
Anyway, if these noodles are the real deal, and they don't taste like cardboard, it would awesome. I'd love to chow down on them with some pesto and feta cheese. Yum!