I use the NE corridor pretty regularly since my three kids live in DC (Capitol Hill), Philly(Center City) and NYC(Manhattan). Sure beats fighting the traffic on I-95. Routinely, I book business class (assigned seat and a little more leg room).
I am also lucky that my destinations are so convenient…….a five block walk from Union Station; a 15-20 minute walk from 30th St; and, two stops north on the IRT #1 (Broadway) Express to W72nd St.
The only drawback coming up from Richmond is the Northern VA congestion where the NS tracks join north of Alexandria and there is congestion getting across the Potomac. Hopefully, the upgrades that are in progress will relieve this congestion………then, there is a 20 minute wait to change motive power in DC (diesel to electric and vice versa), which is usually no big deal……..and still better than sitting stopped in your car…..
Peter