My dad did this for a couple years. If the job itself and his boss weren’t so bad he’d have been there longer. Iirc he would sometimes take the Acela but that the north east regional was less than half the price for only and extra hour on the commute the Acela can take around 2 hours 30 mins while the north east regional from what I’ve seen takes around 3 hours 30 mins. If this is gonna be a weekly thing I’d recommend you take that to save some money in the long term. Unless you can get the company to pay for your trip also it’s 100% easier to make a train commute productive if you want instead of on a plane.

Also as a side note the Amtrak lines from DC to NYC are electrified meaning your commute via train is immensely more environmentally friendly than a plane with less personal hassles than you would get going through an airport.