Dear Brad,
Bavaria is a majority Roman Catholic area and Munich is a large city with a substantial Muslim (principally Turkish) immigrant population.
My knowledge of the church scene is limited to having attended three congregations: MICC, the FEG that shares the same building and an Evangelische Landeskirchliche Gemeinde
http://www.gemeinschaft-muenchen.de/I have been to MICC four times: twice when one of the elders was preaching the only two times he ever preached there! (and he wasn't that great) and twice when the pastor has preached (one of these occasions was spoiled by too much irrelevant humour the other was actually a very good sermon). I know people at the church and have considerable respect for the depth of their faith.
I don't speak German but have been to the FEG three times. One of these included an excellent brass group playing stirring Lutheran chorales, and one other was a less inspiring youth service.
The Landeskirchliche Gemeindes are evangelical congregations within the state Lutheran churches arising out of the Pietist movements of the seventeenth to nineteenth centuries. In these times it was legally difficult for independent churches to exist so many evangelical pastors formed parallel structures within the state church with their own congregations, meetings, pastors, seminaries and diaconal work. The congregation in Kreuzstrasse
http://www.gemeinschaft-muenchen.de/ was very friendly although the evangelistic service I attended (again in German) veered to the Arminian.
There is a very limited number of confessionally Reformed churches in Germany: there are a few Reformed Episcopalians from the US, some national pastors, and some PCA work. There are two independent Lutheran churches akin to the Missouri (SELK) and Wisconsin (ELFK) Synods in the US. The SELK has a Munich congregation
http://people.freenet.de/Trinitatis/You can find something about Reformed works in Germany by using the country as a search term at the web site of this British Evangelical newspaper
http://www.evangelical-times.org/I realise these comments are rather subjective but I hope you find them helpful.
In Christ,
James.