The portions are huge. The flavors are awesome. The pierogi are solid. But the service...sucked.
After being seated almost immediately, I was standing up to leave following a 10 minute wait before a server ran to me to get my drink and food orders. Another server came up and apologized for not taking care of me, which was nice, but it still took almost another 15 minutes to get my sandwhich, and the only reason I didn't up and leave again is I didn't want to be that guy. I had hoped the pierogies I'd ordered would be served ahead of the sandwhich to help break up the wait, but it all came out at once, and the server pretty much said they'd forgotten to deliver the appetizer earlier.
The food was ALMOST worth the wait, and I would go back if asked, but there's a limit to how long you should expect to wait for a grilled cheese, no matter how good it is. With better service, this would have been a four or five star review.