You can put me as MAYBY for 24/25 October (should be on the way to Australia via US what weekend but its now only 1% chance for it)
I have better idea for official hotel
much more better Executive Lounge have
DoubleTree by Hilton Hotel & Conference Centre Warsaw
better hot food choice than Hilton Convention Centre
3 hot dishes usually one fish one meat and one vegetarian much more cakes etc
also Lounge have big terrace where we could have crash party
better swimming pool with upper level free access for diamonds
kids friendly hotel...kids club during weekends.....
I know is far away from centre but Uber cost 4GBP one way....
and its cheaper under 50GBP per night.....
so please reconsider official mini do hotel
hope what this mini-do will be possible...