Absolutely perfect. Even though I barely managed to play much with him before writing the review, the idea of Mario games being easy to pick up and play really shines here; even without knowing the controls I got the hang of it quickly.
That's not even talking about any of the references and extras to be found here, which is honestly amazing. Only real "issue" is that any time you want to go into Mario's custom menu, you have to type the command in or bind it to a key instead of it already being bound to say, Custom 3 or something. That would be a niche but nice feature to include in case someone forgets the command for any reason, although you could accomplish that with a bind anyway.
No real complaints here, this mod deserves the title of Super. Great work to everyone on board with the project!
PS: This man's like 2.2; took about five or so years to come out but was well worth the wait.