He'd be a terrific signing and team with Jean Kleyn to be Munster's top 2nd row partnership for potentially the next 7 or 8 years.
While I'd love to see him at Leinster and think he'd be a great fit alongside James Ryan long term, Munster offers him the best chance at immediately starting and getting into the Ireland squad. Can see why he'd want to go somewhere other than Leinster when he returns since Leo Cullen is the coach who let him go in the first place.
Munster have done a phenomenal rebuilding job over the last couple of years. Whoever is in charge of their recruitment is to be commended. Reminds me of the rebuilding job David Humphreys undertook for Ulster which brought them to a European Cup and Pro 12 final.