I don't particularly care for Steve Harvey as a comedian, but I caught the show today and saw his hosting for the first time. I was pretty impressed with how good of a job he did! His comments after contestants' answers were relevant and weren't nearly as annoying as Karn's, and he was able to keep the game moving and appeared to be genuinely having a good time.
My local affiliate, on the other hand, aired a clip of Harvey standing on the FF set "reminding us" that we can hear him on a local morning radio talk show at least three times between commercials during the last 10 minutes of the broadcast.