I made that commute for three years. It definitely wears on you. However I did it five days a week vs. three, and on commuter rail vs. Amtrak, so you may have a better experience.

Two things I’d be aware of. The first is that the Amtrak trains are much more infrequent than commuter rail, which itself is at best only once an hour. One of the things I found most annoying wasn’t the time spent on the train, moreso being beholden to the schedules. If something arises back home you’re at best an hour and a half from being there. The second thing is the Amtrak trains are often delayed, especially the one going to Boston since it’s coming from DC. That was a big factor in why I kept with the commuter rail, which was largely on time.

Whatever you decide, congrats on the interview, good luck!