The InsuJet is suitable for most diabetics who require insulin therapy, and this includes both type 1 and type 2 diabetes. Clinical studies have been conducted with similar results in both type 1 and 2 patients.  There was no indication that the jet injector performed differently in patients with type 1 and type 2 diabetes.
Please note that it is advised to involve your Diabetes Care Specialist if you consider using the InsuJet device.