So with all of my great experiences with both the M75 pro and the o4 version, I would skip the o4 as it is very fragile for a beginner. Go with good ole analog to start. I get much less range with my m75 pro analog than my o4, but I am not as worried every time I crash that I am going to dislodge the non-replicable camera.
if you decide to go with the o4 go with a 2S setup so you don't 'fall out of the sky' when the voltage gets too low on the 1S.
buy extra frames, and props!