Jaclyn's place is in a great location on the Upper Westside. It is located right on Columbus Ave with lots of coffe shops, restaurants and retail shops around. It is also easy to get to the subway.
The apartment is located on the 2nd floor. Keep in mind, this is an older building so you might hear street noise. The apartment is clean and pretty cozy and you will have full access to the kitchen, but for being 3 bedrooms it does feel a bit small. However, this is pretty normal for city living.
Jaclyn and her sister are very welcoming and will give you space but also provide as much guidance as you need about the city and neighborhood. I would definitely recommend them as hosts.