I think Bundesliga is ridiculously low on overall quality tbh and I think it's alot worse now than it was when Klopp was at Dortmund.
However, his football is translatable to this league. I'd be silly not to say that because I preached the same thing when Ange joined us.
The main difference between Alonso and Klopp are the people themselves however. Liverpool are where they are because of Klopp. Not necessarily because of their football, but because of his mentality and what he's drilled into them.
Alonso will come in and Liverpool will be good. But I also wouldn't be surprised to see them finish outside the top 4.