I've stayed in pods before, in Sydney and Bilbao and thought I knew what to expect here and I did to a point, but this just wasn't as good as those.
A big thing for me was the in pod safe wasn't working and when I asked about it, I was told "Viruses" I asked what was meant and got a pretty vague reply. Maybe they just weren't working and that would have been an acceptable answer, but assuming this doesn't double as a secret bio lab, then it makes little sense as a reason.
The other thing is the doors are fiddly to close, especially the top pods which needs both hands or to move a door slightly until they catch together, then we can pull the whole thing with one hand, but if balancing on the side steps, then just not what one would expect.
Another thing I didn't experience in previous pods was the noise. Fair enough I guess, as there are so many pods all connected together, but they're made of a plastic that transfers the noise and vibrations badly.
I would pay more for a double pod if I were to visit again as they're in a quieter room with better doors etc, but next time i'm in Berlin, I would probably just stump up more for a room in a hotel.
Positives though..... It's in a good part of town with easy walking for most to some major sites
Tresor/Kit Kat are about 20-25 minutes walk, or slightly quicker using the metro.
Checkpoint Chalie is maybe 10 minutes walk or less and there's a cool beach beer garden a bit closer.
There's a supermarket too a minute walk or so