Cerone was a cheapskate and not very popular with his own men.
He was basically a Cheap Prick. However, He was a very smart Gangster. Aligned himself with Accardo, Became Boss of Elmwood Park and then became basically Co-Boss of the Entire Outfit.

Was also smart enough to survive Giancana who didn't like him at all and wanted to kill him. Accardo saved Jack many times.
Cerone was very good in running gambling. No, he was an asshole, but a very smart Mafioso. I have to give the Devil his due.