Jen's place is great - really big- much bigger than the pictures!
Really close to Potsdammer Platz for work things and close to some cool places in the south for a more party atmosphere. But on a lovely quiet residential street and no noise from the neighbours at all.
Wifi was a little slow to start with, but then we discovered the little room where the router is and left the door open the connection was perfect. even for long work Skype calls.
A great stay and somewhere I'd definitely stay again.