DKB is pretty decent, and you can withdraw money without fees on all ATMs as long as you withdraw >= 100€ in one go. Berlin is absolutely ridiculous with ATM fees.
Finanztip.de should be your go-to resource in Germany for questions like that. It's a non-profit, funded by a Fintech guy who decided to start it after his large exit. All articles are written by journalists. It's a real gem.
Not sure about the whole world, but in Germany and the EU, the limit is 50EUR for withdrawing money from DKB.
There are, of course, also disadvantages, like the fact that the new online banking apps are utter shit and offer maybe half of the functionality the old apps offered, but still they sunsetted them.
Advantages are that the have a really good exchange rate when paying with the card in foreign currency. Like really good and they don't charge the 2% tax per transaction that other banks charge.
Finanztip.de should be your go-to resource in Germany for questions like that. It's a non-profit, funded by a Fintech guy who decided to start it after his large exit. All articles are written by journalists. It's a real gem.