They both have learning curves at first. I’ve used Canon for 5 or 6 years so if you put a Nikon in my hands I would be lost. A lot of it’s personal preference, Nikon has a slightly different layout than Canon that others may like. Since you’re starting fresh you may not notice.
For the price of $400 for the kit in this thread you can’t go wrong. Very good price for a barely used camera, 6500 shutter acutations is very low.