Yes, their peering policy was and still is? infamous for being vile. They even had no ports at de-cix for a long time. However as ISP regarding reliability and technological improvement they are pretty good but they won't and/or can't build new fiber infrastructure and try to make the existence for competition in this space difficult...

Politics has no good ideas and mostly follows their wishes (as with subsidiaries for copper/fiber to the curb) probably because costs for fiber to the home would be way worse - so we'll stay at 16mbit (most villages) /50mbit (if you are lucky) /250mbit (innercity / dense population districts)

Cable market is owned mostly by Vodafone and a total mess due to being crazily overbooked in most cities...

But it's not so bad, for 40-50€ you can get 100/40mbit in a lot of places

Triple A rating as in absolute arrogant assholes. Not every single one of them, but enough. "Beamtenmentalität" (bureaucratic mentality).