is. I've never had a problem with the service, and the food is OK (and relatively cheap). Also, even if you didn't go there growing up, I think there is a certain sort of general nostalgic feel/charm to it, since it looks like places you went to back in the day or that you've maybe only seen in movies or whatever.
That said, if good food is all you're looking for, there are a lot of options that are much, much better than Bluebird.