Thank you.

I've only been to the Sheraton Sopot, which is usually cheaper than the Marriott. However, I've been considering the Marriott given the better facilities.

The Club Lounge at the Sopot when I went (fall 2022) was not good, as the hours were quite limited (6-8PM) with no real food and limited drink. The waiters were happy to serve you lots of alcohol right before 8PM in a jug, but expected a tip.