We have a cat who does amazingly well with a highly regulated feeding schedule. Her numbers stay beautifully level if, and only if, she eats about every 6 hours.
We sometimes use Young Again zero carb in timer feeders when we can't be home, especially in warmer weather months.
I would never suggest an all dry diet, but as an occasional snack in conjunction with plenty of moist food, it gets the job done. Her numbers are great, the ingredients seem to be high quality, and everybody is staying hydrated.
The only down side is that our two "Crunchy Junky" cats sometimes snub the moist food in hopes of holding out for dry. Fortunately, they aren't the diabetic cat, so we just give them that motherly, "If you're hungry, you'll eat!" response. Unfortunately, our diabetic cat is more than happy to finish off their plates for them if they stomp off.
I wouldn't say that I think it would work for everybody, but it is surely worth a try if:
1) You want a transitional "sprinkle" for the cat who refuses to eat plain wet food.
2) If there are times when you use a timer feeder and want a food that won't quickly spoil.
3) And if you have cats who will willingly eat both wet and dry.
4) As a healthier treat option. Every once in a looooong while, our cats get a few pieces in their Slim Cat treat balls. It keeps us all entertained when we're feeling stir crazy.
The company's website suggests free feeding, which I would never be brave enough to try with our diabetic kitty. We feed less than 1/8 of a cup per cat between meals, and it seems to keep her numbers balanced really well.