I've only eaten in Applebees twice. Once in Virginia several years ago -- it was OK, not a treat, but better than fast food. Once recently in the San Fernando Valley -- I had a bogo from the Entertainment book, and this was the only location it was good at. That should have been a tip off. It was terrible.
These chains do vary in quality location by location. Here in the San Fernando Valley there is a Marie Calendars in Glendale that I would consider patronizing, and one in Burbank I will not.
None of these places are fine dining, but for a family on a budget its a nice break from burger joints.