As an ancient type 2 (LCHF diet and ex metformin managed) on a lowish pension, I think they're worth every penny for the detailed and continuous information they provide me with. I can't imagine just how much more they must help those of us needing insulin. Probably one of the best diabetic management tools I use (in spite of some recent issues I've had....)
If you can afford to, just give them a try, and see how you get on with them.
Robbity