Getting about Budapest became easier over a few days. The 7 day ticket to travel on all the metropolitan transport (subway, bus, trams) was really convenient. Bought this at the airport. Beautiful city. Make life easier by ordering only standard items for sale; if you have to have non-standard drinks, food, anything, make sure you speak the same language.
I was surprised by how strong (and cold) the wind could be in winter: unlike me, assume that you'll freeze and prepare.