Marvelous stay at this small hotel! Being right in front of the beach, you fall asleep listening to the waves. Staff was extremely attentive, the room was stylish, clean and very comfortable. The rooms are not equipped with coffee maker or phones (we used WhatsApp to request room service and arrange excursions, and every morning there was complimentary coffee available by the pool for those who are early risers.)
The area around the hotel felt safe even after sunset, with plenty of water-front restaurants nearby (our favorite one was the Argentine Grill, about a mile from the hotel.) If you decide to eat at Arca, their food is delightful too! (Most of our breakfasts in Roatan were enjoyed here.)
The beach itself is busy, even noisy at times especially if you're staying in the rooms that face the water. (We slept until 8am and woke up to vendors yelling, boats coming and going, and the occasional kid squealing in the public beach area, but that's beyond Arca's control and it didn't take away from our experience.)
Overall, we found Arca's boutique hotel to be charming and look forward to another visit.