Yes. Peter Pan still runs out of Boston. Still family owned. Still based in Springfield, MA. All late model MCI units. iirc: Peter runs as far South as DC, unless there's a charter.
There's a lot of competition to NYC and spots betwixt. The luxury buses seem to be the way to go. Not inexpensive, but with all the amenities.
Less costly than train service; perhaps more reliable. Reliability & safety were a huge factor several years back, during a price war. The fed and state authorities stepped in to sort it out.
ALL public transportation in the northeast is bad. In the Boston area it's now the worst in the nation.
In the 50's 60's I would drive for a commuter co. when they were jammed, or I needed to be home every night. Central NJ to NYC. Only a few stops starting out and I'd be full. Very nice people, too. In the off hours w/only 2 -5 on board I could learn some neat stuff. One fellow rode in early, from start to finish. He did the back stroke with me at 2pm. Sometimes the only paying rider. Turned out he 'tuned' the mighty Wurlitzer organ @ Radio City Music Hall, 3 days a week. I also contracted to lease companies managing band/orchestra touring buses. R3~