I realize that being a hotel-owner is hard work. This is their livelihood. But at the same time, it is important to be honest, yet responsible, with one's review. Overall, I have to say I was disappointed and wouldn't return here. More below...
The rooms are very basic. For the price I was disappointed with what it had on offer. We're not asking for luxury, but normal comforts missing: windows that don't close, no AC, towels like you'd get when you visit family, one small bar of soap and nothing else, water pressure and temperature on the weak and unpredictable side, cheap bedding, covers, uneven flooring, etc. The breakfast is very basic as well: sliced packaged bread, coffee, bananas and eggs. It was very noisy at night with music from bars and God-knows what else outside the property. We traveled as a couple and neither of us could sleep well. Being able to close the windows properly would have helped, but in the event, that was not to be.
(As an aside, the owners are very French. That's both a positive and a negative. They're polite. But in a country where people are warm, there was a complete, noticeable absence of warmth in them. Yes, I'm making a rather gratuitous personal comment, but the contrast between the native population and the French immigrant population in Las Terrenas is clearly evident in the way they interact with each other and visitors. They would do well to adopt some of the native warmth.)
I suppose we'd expected much more based on the other reviews here. If it had been cheaper and had the previous reviews been more modest, it might have met our expectations.