Ursula and her apartment were excellent. She made us feel very reassured that if we needed anything she'd be just an email or call away. We didn't get in touch though because the apartment had everything we needed, and even few treats. The place is huge and comfortable, and was in the perfect location to explore Berlin—it's in a very chill neighborhood, blocks from favorite bookstores, cafes, and weekly markets, and it's easy to get everywhere from the subway stop. Loved it.