It’s the only safely razor I’ve ever used and it has proprietary blades. I wondering how they compare to other blades and if it would be in my interest to switch to a different razor. I know some people are going to say go Feather or go home but what about other available options?
Late to the game (just had my father in law visit for three weeks, so…) but if you want my take;
Injectors are fun. You can only get a couple of different blades (Schick, twin Schick, and Personna) for them, but the injectors I own (five, so far) definitely have earned their keep in my rotation.
Compared to other razors, injectors are - in my experience - more consistent between models. A Type E shaves much like a Type G etc. Other razors - especially double edged razors, have a much greater variety both in the razors and the blades (and feathers are not the best of the bunch, in my not at all humble opinion).
So if you want to experiment, branch out into double edged. Pick up a vintage Gillette Old or Tech, and go from there :)