I was able to play the game now, let me share you my thoughts.
The good.
1.-The graphics are very nice, the combination of cardboard with leds is very original. 2.-The menu looks fun and is very serviceable.
The areas of opportunity.
1.-The scale of the ships can be a little bit weird compared against the track. 2.-Maybe bigger boost zones. 3.-The movement (A/D) sometimes is not compatible with the current track, in the Fzero games we have more lineal tracks, I think this game could benefit with a more Tunnel/Tube approach instead of conventional curves.
And about this: “Let me know if you’re enjoying the game or if there’s no point in continuing to develop it.” I think its your call, there are a lot or racing games, but I do see the potential for this one, playing this on a handheld feels optimal.
I might be biased, I support anything Fzero related, good luck!