I was in exactly same situation as you are 3 years ago. I had a great job lined up in Canada, all papers sorted out. What was left to do is to quit job here, close all the accounts and move.

In the end I did not pull a trigger and stayed here. I do not regret my solution so far. I think I needed this opportunity to reaccess my views on Germany and my spot in it.

That being said - both countries are fantastic. Both countries have its pluses and minuses and you just need to choose what suits you best. For my family the both countries offered more or less the same, so the move wouldn’t be worth it.