We stayed at Cow Wreck March 1st-8th, 2013 and loved it. The location and view is out of this world. It does not get more remote yet safe than that. Bell and Lauren (mother and daughter) running the place are very friendly and helpful.
There is no wifi except by the ferry dock but the phone reception was good.
The villa has a decently equipped kitchen, nice basic bathroom, another bed room with sliding doors wardrobe and comfortable bed. The kitchen area and "living room" area create one large room. Over all the set up is nice. The porch is in the shade most of the day, which is great as we just relaxed there when our 18 months old son was taking his afternoon nap.
The beach is about 10m away and is more or less your private beach. People who come to Anegada by sails boats grab a taxi and come to have some drinks or food at the bar here so when you had too much solitude you can easily socialise.
Swimming in the ocean is great, safe with mild current moving to the left. I tried some stand up paddle surfing on the reef - not bad. I also kitesurf in a squall (9m kite) but if you plan to kite, I'd bring also an 11 or even 13m one. You will have a better chance to ride. We also took the little one to the ocean, chased the waves on the beach and he loved it.
Lauren arranged for a jeep for us which was necessary to get around the island for dinners, grocery shopping and exploration.
Lauren's response times are slightly slower but that might be to the relaxed mode in Anegada and when she is busy.
Depending on the wind direction, definitely bring mosquito repellant and if you have a little one, mosquito net!!! Just after dusk and before dawn, they go mental and then just disappear.
Overall, an amazing place and one of the first places we plan to come back to for our family vacation. We have travelled the world and this place is stunning.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC