the Hofbräuhaus is a tourist trap, a plastic monster that has nothing
to do with Bavarian traditions and customs
I hate to disagree with a native German like SLA, but I have been to the Hofbräuhaus numerous times and always enjoyed it. I used to belong to a German club in Denver that consisted mostly of old Bavarians, and their parties closely resembled your average stay at the Hofbräuhaus, with it's Ompah band. I think it is what they remember from Bavaria, which makes it kind of traditional.
The first night I was ever in Munich, the office manager for the company's German headquarters took us to Augustiner on Neuhauser Str. as an example of a traditional German beer hall. I was quite frankly under-impressed. No atmosphere, but maybe that's what "traditional" Munich beer halls are. That was years ago, but back then there was no German band playing (which has been at Hofbräuhaus every time I've been there).
In 2012, I spent an evening at the open-air Biergarten at Weihenstephan in Freising and enjoyed it.
I've never felt unsafe walking the streets of Munich at any hour.