Arrowhead Lodge was everything the description said and just what we were looking for. The location is very private and we didn't see or hear any one else the entire time (10 days). The view from the deck is beautiful. We could heard Howler Monkeys every day and saw them on occassion. Lots of birds visited throughout the day, including toucans, several species of warblers, and even an Ocellated Turkey walked up the driveway one morning!
The house is well laid out, with three bathrooms and huge showers. We never had any problems with the electricity, water, or internet. We needed to swap out the cooking gas canister, but Dean had a spare one on site that was easy to connect.
As for the road to get there - it is what it is. If you've traveled in Belize or other Central American countries, you will have most likely been on something like it before. We rented an Isuzu MU-X and had no problems - even after a day-long rain. That was the only day we had to put it into 4WD.
Two thumbs up!