It really doesn't matter how good the idea is if the implementation is poor.

Suppose you go to a restaurant and order a piece of prime Kobe beef cooked rare, and it comes out so overcooked that it has turned into a lump of charcoal. Would you roundly praise the dish because you know another restaurant that makes really good steak, or would you say the dish sucked?

I haven't had a bad Breezeway experience myself, but I've always been on the plane in the first bunch, so no opportunities. I know the NW board gets regular postings about horrible implementation of their version of this, so I wouldn't be surprised if there are also issues on DL. Just because CO seems to do it well doesn't mean that the application of it is great at other airlines.