"It is gezellig here."
Translation:Het is hier gezellig.
The closest English translation is 'cosy'. Grezellig is a huge word in Dutch culture, meaning many things. The main one (in my opinion) is when something is 'grezellig', cozy, enjoyable, with good friends etc. Here's something on it: http://www.dutchamsterdam.nl/155-gezellig
I think it's quite important that this is in the Duolingo course since it is such a major word in Dutch culture.