Spouse, downgraded to Gold this year. Possible that I booked him in Club access room rate but I can't find the booking.
Regardless, he just reported on a three night stay at the Westin Warsaw with lounge access.
The Westin lounge was good, but not comparable to the Sheraton in Warsaw (which has been outstanding this past year and half).

We lived in an apartment just down the street from the Westin for the past year. I love the location for practical living. And it really is a short walk to the centre.

If I had family visiting, I'd put them down the street from the Westin.

Future visits to Warsaw for myself, I'm staying at the Sheraton. Lounge offering was super healthy and extensive. You could literally eat there every night. Amazing for full-time hotel living.

Note, stayed:
30 nights at Sheraton Grand Warsaw February 2022. Plus plus other dates
30 nights at the Marriott Warsaw March 2022
5 nights at Hotel Bristol, Warsaw in 2020 on suite upgrades
visited Moxy's Warsaw for a speculative booking, lol