Type of housing:
Halls of Residence

Arranged by:
Host university

If returning, I would choose:
Apartment/House
Why? Cheaper, would live with Germans

Describe host city:
Students interact with the local community without much university involvement

Travel, Activities, Nightlife take/s place both within and outside of the university/student environment

Course recommendations:
Look closely at what Germans study the course - if you're an undergraduate stick to Grundstudium

The language of instruction was:
German

My proficiency in the language of instruction:
before: Everyday knowledge (shopping, directions, etc.)
after: No problems in any areas (including slang)

Main source of funding:
Personal savings

Other sources of funding:
Family
An ERASMUS grant
Work

Work opportunities
I worked during my study abroad experience.
I worked in a private company

Personal spending habits:
Everythings cheaper

I wish I had known ...
If you're from a British university - you won't be spoon-fed in Germany. You'll have to be active working out what courses are on offer and what your requirments are.

In my opinion:
Everybody loved it, you will too!