Good advice. I plead guilty as well.
I originally used arrow keys, but found out that many cheap keyboards (mine included) cannot handle Up and Left arrow key input at the same time, leaving me with 7 directional movement instead of 8. I wanted to add key remapping in game, but it was low on the priority list and I ran out of time.
Next time, I will definitely prioritize key remapping higher to account for different keyboard layouts.
Thanks for the advice.