Success. Thank you everyone.
decided on the train(s) - most difficult part was finding some of the elevators w a stroller (and raw dogging some escalators). Used Apple Pay on the RMV kiosk for S Bahn tickets. Just under 5Eur for adults.
hotel restaurant was popping until 10pm. Conference maybe? We were tired.
They left a glass bottle of water and cookie for me with hand written note. They had already made up the sofa bed and also brought up a crib with very cute kid pillow and blanket.
Globalist breakfast was solid - chef made fresh eggs/omelette on request. Nice spread overall.
This breakfast really puts the Hyatt place USA breakfast standards to shame. Fresh eggs with wonderful yolks.
all in all a great use of cat 2 points. Room was quiet and good temp overall also.
If a solo traveler I would have been even happier w the trains - but no regrets.