I have taken the Acela which is our excuse for High Speed Rail.
I have taken the line between Boston and DC and it passes through Providence, NYC, Philadelphia, Wilmington and Baltimore.
I can best describe it as hurry up and wait. There are sections where you go 130 mph and then you will slow down to 20 mph due to congestion. It is faster than regular Amtrak because it doesn’t have as many stops.
As a start, we need to modernize the Boston- DC Corridor with legitimate High Speed Rail.
Then we need to look at linking NY with Chicago and a Southern link.