The hotel has two sections, an old and a new one. I booked the new section through the app, but upon arrival, the staff said all rooms were booked. They then transferred me to the old section, which I didn't agree to. After some negotiation, they prepared the room for me to check in (even though I checked in late at 5 PM). Note that booking the new section is generally more convenient and nicer.
Regarding location, it's close to the city center, next to Vincom, Sailing Club, and the beach, making it very convenient.