I'm an American who was accepted into the MBA program at Mannheim. I'm also on the wait-list at two T10 US schools that I applied to in R3. I'm confident I could get into one or both if I reapplied in R1 even if I don't get off either waitlist this summer. I really like the cost/duration of the Mannheim program and I'd love to live/work for a few years in Germany but I would likely have to get a position at a MBB/T2 firm to make it make sense for me based on my current salary/career progression. This would also be the same outcome I'd be looking for out of the US schools but if I can get it from Mannheim that would be a no brainier for me to do.
Based on what I've seen on LinkedIn it seems like Mannheim does send MBA grads into these positions but they seem to be exclusively native German speakers. I speak German at a C1/C2 level but I'm wondering if that would be good enough? There are still differences between me and a native speaker even at a high level of German.