Krissy's place is in an ideal location for your North Shore visit! It's within walking distance of two beaches (one relatively busy, one more secluded), Queen's Bath (which has limited parking to begin with), and several restaurants if you need a quick bite after a day of exploring. It's also a short drive to many other beaches, restaurants, and attractions.
The condo has everything that you need for your stay and Krissy is very attentive in responding to guests. The provided beach chairs, umbrellas, beach towels, cooler, boogie boards, and snorkel gear are a nice touch and are very convenient for guests--saving both money from rental fees and space in your luggage.
If you plan on sleeping in super late, you might want to bring an eye mask since the room has quite a bit of natural light and no black out curtains (not a big deal if you plan on maximizing your stay on this beautiful island).