We spent 10 nights there and loved every moment of it! As long as you realize it is the southernmost home on South Pointe, so about 1 1/2 miles to the village, you'll love it.
Comfortably Numb is basically a small apartment with a large, screened-in porch, and a private dock on the Caribbean Sea. What's not to love about that setup? Don and Cindy are wonderful hosts, as are their island furbabies, Rice and Beans. They made invaluable recommendations.
We took advantage of the bikes and kayaks for treks to the village, and walked there once or twice a day. Outside of that, we pretty much enjoyed the lives of lizards. If we weren't in town enjoying some of the tastiest food ever eaten (don't miss Reina's!), or doing something that felt really adventurous (snorkeling with sharks anyone?), we were reading, playing cards, and chilling out on the screened-in porch-with-a-view or watching the sky over the Caribbean.
The apartment has a full bathroom with a good, hot shower and good water pressure. The kitchenette with minifridge, stove and microwave did allow us to prepare a few meals at home. But the food is so good in the village, we took most of our meals there. The bed and linens were so comfortable. We slept long hours and felt really rejuvenated when we left Caye Caulker.
The only reason we hesitate to share our experience is that we don't want it to become so popular that it's perpetually unavailable for us! But seriously, we thought Comfortably Numb was awesome.