Poland is a surprise. Cities hum with history and young energy. Kraków has tiny cobbled streets and late night cafes. Warsaw is modern with rooftop bars and big coworking spaces. Up north, Gdańsk and Sopot have beaches where people play volleyball all summer. I read about a weekly game on Sopot beach that draws a mixed crowd. For some, this will be amazing.
The vibe is friendly but honest. People love good food and long conversations. The climate gives you real seasons. Summers are warm. Winters get cold and snowy. That can be cozy or harsh, depending on you.
Cost of living is lower than Western Europe. You can rent a nice flat and still eat out a lot. Internet is fast and reliable in cities. Things to do range from mountain hikes in Zakopane to jazz nights in tiny bars. There is a growing nomad community, meetups and lots of cafes with plugs. Most travellers enjoy the balance of city life and easy weekend escapes.