In my experience ALTERNATIVE flour anything, is not good. At all.
Whenever I am faced with a pasta meal I have to share in, I just ask for a bowl of the sauce and a spoon.
It's pretty good but I don't have it regularly...I prefer their gnocchi.
I bet it takes a whole lot of xanthan gum to bind almond flour together into a dough that can be boiled. I wouldn't eat it.
Pasta is so 2007.
Male / 6'0" / 165lbs.
Eats a lot: beef, liver, eggs, spinach and beef
Eats a little: berries, chocolate and potatoes
Exercise: miles of walking and compound barbell lifts
Hobbies: music, hot rods, rollin' with the homies and bustin' caps.
I've never used alternative pastas. I also don't buy almond flour, or products made from it, because I have concerns about rancidity. Shelled nuts can go off pretty quickly if they aren't stored right, and once they're ground into a flour their shelf-life is even shorter.
So if I want nut flours (or ground flaxseed, which also goes bad really fast), I grind them myself.
That said, one of my criteria for deciding which processed foods are acceptable and which are not is, "Could I make this at home, with single ingredients I can buy locally with minimal difficulty, and using relatively simple equipment?" So wine, beer, or mead? Sure. Cheese and yogurt? You bet. Pickles, sauerkraut, mustards, relishes, and vinegars? No problemo.
But I don't know how I'd go about binding almond flour together in order to make a dough that would pass through a pasta machine and stand up to cooking. The natural characteristics of wheat flour make pasta-making easy, but almond flour doesn't have those same characteristics. So I'd want to know exactly what's in almond-flour pasta that makes it "work" as pasta--but even then I'd be unlikely to eat it due to the rancidity issue.
(Yeah, I know--I'm just no goddamned fun anymore. Oh, well.)
My go-to noodle/pasta subtitutes are squashes. Spaghetti squash is great, but I also use a peeler to make noodles from zucchini/summer squashes (especially the gigantic late-summer ones), or peeled butternut squash. I lightly sautee them in a little bit of butter, then add my sauce--which, to be honest, is the thing I really want in the first place. It's quick, easy, and doesn't steam up the kitchen.