Tbh it wouldn't be the sort of film I'd normally reach for immediately, that's true. But it sounds like there's enough substance there to match the style. Didn't live in Berlin, but I was there quite frequently for a few years, so I'm always interested to see representations of the city on screen
Edit:I watched this last night. By about 30 minutes I found my attention wandering a bit, but I thought they really turned it round with the piano scene in the cafe. From then on I was engrossed, even if (as you said Rich) much of the second half didn't make logical sense. But it made a certain kind of emotional sense to me. Have to agree with this review in part
http://www.rogerebert.com/reviews/victoria-2015 - for me it's Laia Costa's performance that transforms what could've been an uninvolving film into something much more, rather than any technical ingenuity (don't agree with that review's idea that the film ran out of steam before the end though - I thought some of the last scenes were some of the best).
"you are left with a feeling of emptiness when the film ends and you discover you have lost those people. That you never had them" - the way I interpreted it was that this is exactly how Victoria feels about these people who she has only met a matter of hours earlier, once the adrenalin has subsided, and so you as the viewer are sharing in that emptiness with her.