I was T2, though now designated Type 3c and have been on insulin for a few years. Due to the insulin I no long need to adopt a low carb diet but I do need to count carbs in order to adjust my insulin accordingly. It's no big deal and I manage to maintain a pretty good glucose level most of the time.
I should prehaps add that I'm on muliple daily doses and inject for each meal as well as a single dose of long-acting insulin though I did start on single dose for a few months.