We just returned from this place. The rooms were small, not very clean but quiet. Bathrooms were disgusting but wasn't expecting more for the price. But....
We rented a motorbike from them on our first day (only way to get around the island). Our big mistake was giving up our passport as a "deposit" but they insisted. When we returned it, they claimed 24k baht ($800 USD) worth of damage and wouldn't return our passport until we paid. They agreed to a "discount" and we wound up having to pay nearly 600 USD. There was no damage to the bike beyond normal wear and tear.
This is a huge scam in Thailand on the beaches and we can report that Wattana is quite eager to get in on the action. Do not stay here or give them your money.
Also-- this place isn't actually on the beach. You'd be better off staying at Bottle Beach or Had Khom.
The food, I guess, wasn't terrible.