It looks like Innolet just the name of the device. From what I see, it looks like it just administers larger (up to 50 units) doses of insulin detemir.
If my research is correct then, yes, I have experience with Levemir. However, I use the flex pens.
Take my experience with a grain of salt. I'm a recently diagnosed type 1 and likely still in the honeymoon phase.
With that said my levels have been razor sharp on levemir. I currently take 14 units in the morning and 14 at night (28 total). In fact, it works so well that there are many days I don't need meal-time insulin (my diet and exercise regulate the rest).