I cannot speak for anyone else but my personal experience with the man was a negative one. I was representing the radio station I worked at in Honolulu on media day for the 1993 Pro Bowl. I was tasked with recording the players saying something like "This is Daryl Johnston of the Dallas Cowboys. Hawaii's hottest music is on I-94". Every player I approached was cool about it and chatted with me a little. (My Daryl Johnston story is a good one. If any of you would like to hear it let me know) Anyway, the players were there to speak to us media guys so I did not feel like I was intruding on them or anything but that is not how Deion Sanders saw it, evidently. He was standing there talking with Andre Rison. They were the only two players at media day all decked out in multiple gold chains hanging around their necks. I asked him if he would be so kind as to give our station a sound bite and he said "Naw, man." I said "Excuse me?" to which he replied "I ain't tryin' to advertise your radio station." I thought this was douchey and I bade him farewell by saying "Ok. Well, you guys try not to get your chains all tangled when you hug up on each other."
Yes, I realize I was a jerk at the end but I was only 21 years old at the time. I would hope to act more mature now.
At any rate, yes, in my experience Deion was a D-Bag. Hopefully he has also matured with age.