In the NY - Boston service, the only food was from a cafe section and the offerings were what Amtrak provided in its regular cafe cars, but perhaps a bit more limited, and no better nor worse quality. However, except at 35 mph and over specialwork, the ride was confortable and quiet. Only coach class was offered, but there may have been a premium fare, similar to Metroliner. I usually sat behind the engineer behind the glass or plexiglass partition. Everytime I planned a trip on the Turbo, I rode what I planned to ride, and never once was there a need for the Turbo to be pulled by a regular locomotive. And on-tme performance was normal, but speed limits were definitely exceeded. I remember riding a steady 110 mph on the digital speedometer btween Portchester and Rye going westbound on the eastbound express track.
But I understand that each unit arriving in Boston in the evening (meaning each unit every other day) would backtrack to Providence, where United Aircraft had a maintenance shop, and each train got what about to a thorough overhaul every other day!
On my weekly trips I still opted for a roomette on the Owl or a good meal on the Merchants on occasion. And rode parlor once or twice on the Merchants. And very occasionally on the Patriot from Penn Station. And once I missed the Merchants at Grand Central, but instead of going to Penn for the Patrtiot, rode the Bankers (Springfield train) to New Haven and crossed the platform to the Patiort there. And horrors, I even occasionally did fly Northeast Airlines Vicounts, but not very often. Eastern Shuttle? DC-6's were far too noisy for my ears. Bus? Once during a RR srike, Greyhound.