It did not work as expected, It was far too tight for the joycons and scratched off paint along the sides. It did feel comfortable however. I would highly suggest re-making it so that the part you slide the joycons onto is thinner, that way you can avoid scratching off paint and it won't be as difficult to take off.
The print time for replicator 2 is 1h30min using diamond infill. Again, I would highly suggest re-making it so that it's thinner on the part where the joycons slide on and off.