It really depends upon the person, as I'd never want to go into a business partnership with someone who's just as likely to try and undermine or countermand me later over opinion, but yeah, my inclination would be to at least interview the guy.
How does his opinion differ, really? Everything he's done indicates that his desire was to operate as closely as possible to the Trader Joes formula as he could. He has proven he can operate a successful business. At the very least I'd give him a franchise to run.
And has proven to be able to sell these products profitably.