Originally I was just pissed about the way he died and we never got a Luke, Han, and Leia reunion. I felt like Ford did a lot to carry TFA. Wasn't a fan him being dropped unceremoniously into a pit, it was a shitty way for his character to go out IMO. Kinda would have been nicer if he got more of a Qui-Gon death with a funeral pyre.
As far as his legacy goes I heard some arguments that swayed me. He regressed from his original character arc. He went from a self serving smuggler (with the exception of Chewy) to a selfless General in the Rebellion, only to revert back. He was a failure as a husband, a failure to the New Republic, and most of all a failure as a Father. His kid became Space Hilter and blew up 5 planets killing billions, while he's busy paling around with Chewy. Sure he gets involved again due to the plot and Rey just so happening to have the Falcon, but making him a smuggler again while his son is basically the new Vader and leaving Leia to clean up the mess is a real shitty look.