Did monaco live up to its promise? I'm afraid its hard to say, because Monaco credit card is extremely incompetent against visa and mastercard.
There isn't a product, yet, so until that happens I guess it is hard to say. However, they are a visa program manager, are sponsoring money 2020, and have a team that has the ability to deliver a credit card.
All that said, they need to release a product, and there have been repeated delays/changes to timelines. I think it is worth waiting until at least money 2020 to see what is announced before making any further decisions.