Mik is a good solid prop. A couple more like him and we'd look much more solid. But he's never going to punch holes in a defence, absolutely muller people in tackles, or really do anything to create big moments in our favour. Just goes about his job the same way most weeks. I'd say that's why some fans of other teams (particularly Sts) don't rate him - they generally see him toiling away in an outgunned pack and wonder what the fuss is about.
Put Mik alongside a Walmsley-standard monster (maybe next year please Santa/BA) and he'd look much more standout.
That's not putting him down - the best teams have both kinds of props, workers and dynamic players. We haven't had that at a high level since JP and Kylie retired.