It was only one week old when I visited it but has great potential. Menu was experimental but vast. We had: chickpea stew with millet, penne with kale and other goods and lunch of the day. Chia pudding 10/10!
They are brand new so the organization was not on its best- some people got to order in the bar, some sat and waited. The stuff is very hepful though and the whole restaurant has great potential. Will definitely visit in the future.
update: Been threre year after. Improved 100%. Food is AMAZING. My favourite spot in Poland.
Prices are not the cheapiest (20-26 for mains) but I guess is a standard in Warsaw centre.
Updated from previous review on Monday July 14, 2014
Cons: prices, organization (probably because it's new)