First time we use Airbnb, so I can compare with my previous Hotel experiences. This time we choose to stay in an apartment because one of us need a special diet, so we need a full equipped kitchen.

First of all the positive things:
1) The apartment was very clean
2) We have two large rooms plus a living room
3) The kitchen was very well equipped
4) The location was 5 minutes walking from U-bahn in a residential building in a quiet neighborhood

In the end we have a very pleasant ed relaxed stay in Berlin.

The negative thing:
1) Internet was working very slowly in the morning and not at all in the evening. I will discuss the technical details privately with the host, but the conclusion is that, if internet access is essential for You, this apartement is not ideal.
We found a good internet café in 15 minutes of u-bahn: Mc Beam Internetcafe, Frankfurter Allee 32 (U-bahn Samaritanstrasse). Recommended. Our work was done from this location.