Do you happen to have a Visa Signature card? There's a promo that lets you link your card to your Hhonors account and get immediate Gold status (through August). With Gold you get free breakfast.

When are you planning to be in Krakow? I'm at the Hilton Garden Inn now, and have been enjoying the breakfasts (made to order omelettes, Belgian-style waffles, plus all the usual stuff.)