I write this review to, hopefully, help you make your mind up about booking this apartment. I will try to cover the things we wanted to know. Check-in could have been a disaster as we were delayed by train cancellations. Our host solved this problem as, despite beginning his own holiday, his excellent communication took the pressure off by assuring us we were fine and that we were met on arrival. The apartment is a relaxed, 8-minute walk from the tram stop. Lots of public transport within 10 minutes' walk. It's a great location - again, about a 10 minute walk to the local centre which has so much to offer - interesting museums, the Wall, quirky shops, supermarkets, eateries, theatre, cinema, bars etc. Much to do but still has that 'local' vibe to not feel overly 'touristy'. Plus, getting to the centre of Berlin is quick and easy. Great area for walks - it feels safe and welcoming. The apartment itself was spotlessly clean, spacious, had character, plenty of power-points, all the basics you need, a smashing little bathroom and a lovely balcony overlooking the charming, internal courtyard. Many thoughtful touches like washing machine instructions, labels to assist with door-lock positions etc.
I cannot overstate how happy we were with this entire booking experience. I sincerely hope to repeat this smashing stay.