A great spot not too far from the city centre. Around €15 for an Uber to Brandenburg Gate. The space is brilliant and would be perfect for couples. I stayed with a fellow filmmaker and the space was more than enough for us and all our gear.
Dan also put in some thoughtful touches like adding some free vegan granola (as a vegan myself this was really nice). WiFi is fast, the shutters added an extra level of safety especially when we were storing our expensive equipment.