I don't like them. Partly because of the corporate standard type approach but mostly because they're filthy most of the time with pots and plates everywhere. Same with the likes of Starbucks. If independent cafes were run like Starbucks with trash piled up on tables everywhere then people would complain like hell. Why they put up with it Starbucks I don't know.
Anyway, back to JDW - I go in occasionally if I want a quick beer and something to eat when working away but that's it. I wouldn't specifically boycott because of Tim Martin's Corona behaviour.