Underberg is gaining trendiness in the States. I have several in my drawer right now, but I will say I'm a sucker for digestiffs, it's definitely better than the bizarre culture around Jagermeister.
What is the difference besides horsemeat?
It's hard to get right, there is a famous German restaurant nearby (not just Bavarian mind you, but definitely a bias towards the famous Alpine foods of Bavaria and Austria, with quite a few Hungarian foods throw in for good measure) . I've had their sauerbraten a few times and I've made it before, but it's tricky to get the roasting right without drying out the cut, because typically I find a less fatty cut is used.
The beer selection is exquisite.