Bremen is a bit similar to MCR, most parts in the town are within walking distance. Some historic parts to see, a beergarten mile along the river weser, an oldtown and a dead harbour area.
Nighlife isn´t like in Berlin but many good pubs and bars to drink in.
Any english people I had as an guest liked the trip into my hometown.
Any special questions?
P.S. Tickets for homegames Werder Bremen aren´t easy to get as the ground is in an rebuilding projekt at the moment.