Firstly, I'd say, esp if you're unsure but making progress and not doing anything "wrong" right now, if it ain't broke, don't fix it. You can go to NR when you find you need a changeup, or if you get to your goal, or if you get bored, or whatever.
Secondly, I'd say you won't know how NR will affect you till you try it. For me, I "diet" at around 1200 cals (low maintenance) and therefore that intensity is killer for me. But I've done similar programs (before NR came out) at 1600-1700 and saw great recomp results and energy was fine. So, if I had a higher maintenance to let me eat that much and still have it be a decent deficit, I'd see better weightloss results… but alas, is not to be.
So that is to say that it perhaps could work great for you on ~1700…
But again… if you track your food and measure it and keep your non-exercise activity up, the workout is secondary, and as long as you are seeing progress with what you want to do, do what you want.
