Did a same-day comparison. Acela First Class seat 4F vs Delta Shuttle seat 3A. Acela got me Penn Station to Back Bay in 3h45 vs Delta’s 4h30 once you factor in security and the Logan bus.
The new Acela sets feel legit premium: full breakfast (the shakshuka was excellent), fast WiFi, outlets that worked, and no airport hassle. Delta Comfort+ was cheaper but the stress of lines and transfers killed it.
Only gripe: a few people still cut through the “private” First Class car. Otherwise, for business travel, train wins hands down.
Anyone tried the new Acela First Class menu yet? The wine list looked tempting.

