I have mixed thoughts.
1 - Can he actually coach? I suppose if he has good coordinators he can just be the loud mouthed CEO type, with swagger that will make it a fun place for players to be. But, I would worry that as a player would you actually get good coaching and preparation for the next level. I have concerns that long-term the lack of top quality coaching will be an issue.
2 - Portal King. I expect him to claim this title very early in his career, which will put a highly talented team on the field. But, see point #1, can they back it up? Also even at his prep academy he tried to start there were lots of issues with player tampering. Will this continue at the collegiate level, pushing kids to the portal?
3 - Roster. I can't even imagine being on a roster with the Portal King. He's going to tell you one thing to your face, then grab a guy from the portal that gets preferential treatment ahead of you. I would imagine this roster is going to turnover a lot. In and Out. Why on earth would you stay multiple years at a place like this, knowing your coach will never be loyal to the existing roster. That's sports though right? Maybe, but I think he will take it to the extreme. Sometimes kids need some stability and loyalty to actually build a team. You need a little cohesiveness right?
4 - Offensive and Defensive Scheme - It has to be very simplistic, or commonly used if your roster is going to be turning over so much. I would expect almost a new team each year with Prime Time. And then do the better X's and O's coached teams win over talent? Who knows?
5 - Deion himself is super shady. I live in DFW and there are no shortage of stories I have heard on the radio/news/etc over the years about scumbag things he has done. From not paying auto repair bills to his disaster at starting his own prep school. He is literally a used car salesman and I couldn't possibly trust him with my kid.
If you want to go down a rabbit hole, lookup Prime Prep Academy that he tried to start up and was a complete mess. Allegations of Racism (he liked to play the race card when questioned about obvious problems, players also had issues with racism), Fraud, improper influence, etc. were just the start.
My guess is he has some success early on by grabbing the top portal players, but I will probably smile when he can't continue the success.