The dosage table I attached is why I'm not going to switch. Ultimately, Afrezza is not going to work very well for someone who is sensitive to insulin and carb counts. It's really intended for people with type 2 (or others with insulin resistance).
With an insulin:carb ratio of 1unit:25g, that means have to eat at least 100g of carbs a meal or step it up to 200g.
Even if your ratio is a more standard 1unit:10g, that means you have to eat in 160 calorie (40g carbs X 4) increments.
Bottom line, Afrezza may pose challenges for anyone who low-carbs, carb counts, or is reasonably sensitive to insulin simply due to the fact that you have to dose in increments of 4units.