We almost exclusively eat Dreamfields pasta - I don't care for the taste of whole wheat pasta. I started using it when I was doing a diet for insulin resistance due to PCOS, and wanted a pasta alternative. To me, I can't taste much difference between the Dreamfields and regular pasta, which was important to me. It can get gummy if you overcook it, but that is the same with any pasta. I still make sure to eat the correct portion sizes, as I am a calorie counter, not just a carb counter.
When I was specifically counting carbs (and calories!) for the insulin resistance diet, I counted the net carbs that they claim and still lost weight. I don't know how much of a difference it makes though!
So long story short, it doesn't taste horrible.