I stayed at the Hampton in Poznan I am too lazy to open a new thread or do a full review.The room are standard Hampton so good. The shower pressure is poor and the water in the shower lukewarm at best, not sure why.
Breakfast is not great, poor quality, no fresh fruit (I remember breakfast was also a weak point of the Hampton in Gdansk), bad quality cereals and joghurt, no nuts, stale bread. Really disappointing. The staff is OK, maybe a bit on the abrupt side in their dealings with customer but I have seen worse. Water bottle given every day on the other hand.
Location is by the edge of Stare Miasto and close to buses and trams. It takes 30 minutes by public transport to/from the airport.