I will be reporting to 5-7 ADA, in Baumholder, Germany. What kind of place is it there and what's some advice for when I get there?

The best thing about Baumholder is that it's close to everything. Get your passport before you get there or miss out on a bunch of mwr trips. Passport services there are scarce so it could take months for you to be able to get it.
Be prepared to run hills. Baumholder has all the hills in Germany.

I was there during the Cold War. Had a blast.

We called it The Rock.

You get all four seasons in one day. lol

I wonder if the Metropol is still open.

Euro is now 1USD to 1.15 Euro. Not bad. Always cheaper to shop on post or Amazon.com. We didn't have Amazon back then so everyone dressed alike in AAFES Fashion. HAHAHA Calvin Klein, Tommy Hilfiger and Ralph Lauren.

Frankfurt is a shirt train ride away. Saarbrucken is close by. K-Town is close. France is a short ride away. You can have a lot of fun there. Plan it out and choose your fun.

When I was there, we were in the field about 2/3rd to 3/4ths of the year. If we weren't in the field, we were out partying.

Baumholder was my last duty station. My first company formation consisted of the 1sg reading the names of NCO, and soldiers who failed there drug test, and there was a lot of names.Random drug testing was the normal. I had heard of the stories of misbehaving wives that Sgt Glenn writes of, over weight soldiers who should of been chaptered out was a common sight, and so many soldiers going AWOL. Doing anything out on the German economy is expensive on a E-4 pay, cuss there on the euro. It's like $3 to 1 euro when I was there. So expect to be broke ask the time, or become a barracks rat. Truly not what a stateside post is like, but hang tuff maybe it's changed, and make the most of it.