Lana's communication was excellent, she always replied within minutes. We asked for an early check in and late check out, which Lana was able to accommodate and we really appreciated it, the extra time bag free enabled us to enjoy the city even more. The location is extremely good, really close to an U-Bahn station, many many bars, cafe's, restaurants and shops. We hired bikes for 2 days and were able to reach all of the places we wished to visit very easily, Berlin is very bike friendly. There is a courtyard at the back (where there is currently some building work, which woke us up from our holiday lie ins on one occasion, but was not overly disruptive) where we were able to lock our bikes up and not worry about them. We were a party of 6; 3 couples, and we did find only having one bathroom a bit of a struggle, it took much longer to get out in the morning! There are 3 bedrooms (not 4 as in description) 1 living room with sofas and dining table, a bathroom with a shower attachment (not a stand up shower which we felt would have been an easily achievable improvement) and a very small kitchen. The kitchen size was not a problem for us with so many wonderful coffee shops, bakeries, and every variety of restaurant all within a 10 minute walk, we had no need to cook. We just needed a fridge to keep our beers cold and somewhere to make coffee, both of which were provided. The beds were very comfortable but the rooms did feel quite basic, for example, the biggest bedroom had mirrors and bedside lamps, but the 2 smaller rooms did not which was not ideal. I think with some simple improvements the apartment could be 5 stars, but as it stands I think 4 is currently more appropriate. Lana's communication, comfortable beds and the location were all great, and what more do you need? I would recommend staying here for people who want to be out and about lots of the time, a good base for exploring the city or staying local and appreciating the buzzing area.