Yeah, the 25 days of vacation are a bit disappointing, in Germany 30 days are standard.
Talked to a German guy who was here on holiday recently. When I told him that in the US it's typical to get two weeks vacation when starting a new job, you should have seen his eyes bug out. It was hilarious.
Is that including or excluding bank holidays? In the UK, 25 days excluding the 8 bank holidays is pretty standard.