He's a good player but not what I'd call an elite athlete. Is he better than Hockenson was coming out? Not sure. I think he's been ND's leading receiver for two years?
Mayer is an interesting player but taking a TE in R1 is too rich for me. I think it's a decent TE class and they can (and should) find one later in the draft.
If there's a decent pass rusher or a difference maker at safety I'd take them over Mayer. Amos is gone, Savage is concerning, Ford is a backup. Preston Smith is old and Gary won't be back until October. They need help at TE but I wouldn't overprioritize it. BPA