They acquired Postbank (where I have an account) some years ago. Postbank had a reputation for good IT. Now they are consolidating their online banking system... Of course, on the bad system of Deutsche Bank. It's a huge mess. I need to log into two different systems for credit card and bank account things. They mailed me account statements for the timeframe of one day once and for a few days another time. I never get printed statements otherwise. The switchover is also months behind schedule.
So, Deutsche Bank is still crap at IT.