Am I Wrong For Ending My Management Contract Without Notice?

[Charles Giovanniello]

I've been working with my property manager since November 2018, and since then i've always felt very out of the loop on information about my property. He would go days without returning calls / texts / emails. And always send rent checks late. He even allowed a new tenant to bypass the last months rent up front because they didnt have the money (and he made this decision without first confronting me). So I found a new company a few weeks ago, gave them a call and was pleased with the knowledge and the responsiveness. I terminated the contract with my old manager (and this was allowed as stated in the contract) but when i called my old manager to tell him he was very very upset, it felt like a breakup, and he was begging for a second chance and also "very concerned" about a situation he was dealing with regarding tenants on one of the floors. Now I feel like I should have given him more notice, or explained that i was unhappy at some point. He was a really nice guy, neighbors seem to like him, am i wrong to terminate without warning?