Schipol <-> Amsterdam travel on NYE, advice please

[SoreTween]

I've got an overnight at Schipol on new years eve.  I'm not much of a party animal hence agreeing to travel on the 31st but even to me this seems an opportunity I ought to investigate.  According to ns.nl trains to/from the city will be running, I should be able to get:
AMS -> city 20:53 or 21:07 (last train in)
city -> AMS 00:45 (first train out)

a) should I believe those trains will run?  I'm used to UK service levels.
b) will I be rammed in on the return sardine like with fifty five faasand vomiting drunks?  Again, I'm used to UK pubic¹ transport so would assume 'yes' here and forget the whole idea.

Or is there a better option?

Thanks

¹ Not a typo, it's bollocks.

[ijsbrand]

Are those times correct? NS trains normally stop riding at 20:00 h on the 31th of December, and only resume service after 01:00 in the New Year. Or are those international trains?

The one time I had to take a night train just in the new year wasn't pleasant, because of the far too many drunks. But that was in 1993.

[ijsbrand]

9292.nl -- the commercial public transport guide -- confirms the times you mention. Must be a Schiphol / nation capital exception to the rule of thumb.

[farfetched]

The two trains you mention are not regular NS trains, they are international ones probably from Brussels via Rotterdam... not likely to be full of drunks but no guarantees!