Anna's apartment is perfect for a solo traveler. The room itself is quiet (courtyard facing), but the street entrance is well-traveled and safe at night. The cafe downstairs has great coffee and pastry in the morning. I stayed in Prague for three weeks, and this neighborhood was my favorite - a short walk to the museums and tourist attractions in Old Town, but much more relaxed than that side of the river. There are fantastic little farmers markets in the vicinity and walking paths around Petrin Hill nearby.