In my experience Chesapeake House, originally opened in 1972, is less crowded than Maryland House, so I have preferred stopping there over the years. The last several years have seen three completely rebuilt service areas along a 40 mile stretch of I-95 between Baltimore and Wilmington. The Delaware Service Plaza was rebuilt in 2008.
Service areas are lasting vestige of the pre-interstate toll roads area. In order to promote commerce along interstate corridors, service areas are banned and have been since the early 1960s. Some interstates were assigned to existing turnpikes like parts of the New Jersey Turnpike and the service areas were grandfathered in.
Unfortunately, an opportunity was missed during the reconstruction of these service areas — flyover ramps from the right side. It would have been eight overall (2 off, 2 on in each direction) but for whatever reason, the Maryland Transportation Authority did not choose to go n that direction. Safety and traffic flow are better when exits and entrances are from the right side.