I had a great time at Marius & Daniela's place. The location is perfect if you want to enjoy Prague's "real life", far from the tourists and mainstream places. A lot of art galleries or bars and cafés filled with local, arty people can be found around Marius & Daniela's place. Marius was really nice and I had no problem communicating with him in English. He also left a local guide at my disposal, which I really appreciated: it was full of tips from locals, it helped take my stay in Prague to next level!