Rob Bell is an incredibly gifted orator. His series of videos combine his great communication skills with creative, effective, artistry. He is considered a pastor, and indeed he is shepherding masses of people. I would be playing in to Rob Bell's hands to call him a heretic...he loves to depict people who make such accusations as narrow, judgmental, and nothing like the real Jesus.
So I won't call Rob Bell a heretic, although he is one. Heresy isn't Satanism outright. It looks and sounds like truth, but there's always a fundamental flaw that will condemn a person if they truly believe what it says. You know...it's like what the serpent did with Eve in the garden. He asks her if God really said what he said about not eating from that silly old tree. Then he gets her to second guess herself about what God actually said and eventually leads her to twist His Word. Well then, on second thought, what Rob Bell does is in fact pretty satanic. Just saying.
Here's Bell's latest serpentish creation-
Mr. Bell is right about one thing- what we believe about heaven and hell is incredibly important.
Reading Jesus' words in Matthew 7 we learn of the truth about hell (a wide road leads there) and heaven (a narrow way leads there). We also learn there are wolves who will deceive.