The flat is spacious and conveniently located - the bus stop from and to Tegel airport, u-bahn, tram-stops are very close. Big supermarket Kaufland is 5 min walk. We had everything we needed! And liked our stay. Vincent is a very nice host. I can recommend this flat for staying in Berlin!!
P.S. Please note that due to the fact Vincent smokes, there is a smell in the flat - for us it was OK but for those who has allergy on it, it might be a small problem)