I voted for him four times now (two elections, two runoffs).
His commercials really developed this last one. He has a humorous side and he did this bit where he showed up at someone's Thanksgiving dinner to ask for votes and said "if I don't get enough votes, this is what your Thanksgiving will be like."
I would say he also really did a great job at outreach to White voters. Stacey Abrams did an awful job and it shows in the different outcomes.
Personally I am not a fan of religious leaders running for office, and think Dem voters would complain a lot more if a head of an evangelical mega church were a sitting senator and didn't give up the pastor job. Warnock gets like 10k/month in housing allowance. Talk about being a follower of Jesus amirite?
I wouldn't discount his chances as a future Dem presidential nominee. Dem Presidential nominees are decided by and large by Southern Black Baptists. Dems are so stupid they will probably try to run Stacey Abrhams again in his seat if he leaves it for national office.