I have stayed at D'nest and would do so again. If you ventured to the site provided by Katie and found the trip advisor reports you can see that people have glowing reports about the place.
Check out their website at http://www.dnestinn.com/
and see for yourself. Their little garden is so beautiful.
My son and I stayed there for two nights and did a tour to Xunantunich and the Belize zoo arranged by Gaby.
Gaby and Oty are wonderful hosts.