I'll just reply to my own post lol.
The Radisson RED and Radisson conference center hotels are virtually indistinguishable. The check-in is the same spot. I don't know if the RED has different rooms but the conference center hotel is perfectly fine.

Also, you can walk directly to the train station instead of backtracking to the terminal. This leaves you at the end of the platform, though I didn't see any ticket machines. You can always buy tickets on your phone via app.