Barbora's place was exceptionally clean and very easy to check-in to. I wouldn't exactly say Brixton is "trendy" but the pub across the street was really nice and the walk to Stockwell station was nice, Brixton station not so much. (the area around that station was very dirty and I didn't feel safe walking alone, even during the day. Lots of homeless and others trying to sell us stuff on the streets)
The flat itself was very nice, great TV, comfy beds and a significant amount of space with 2 beds and baths for the price! Unfortunately, the flat above us had a party that lasted until 3:00 am and any time someone walked into the building we could hear everything...just something to keep in mind if you like your sleep!