I went to this cabin in August of 2011. There is no trail into the cabin so the privacy should be good. The refuge area has a done a great job fixing up historic cabins and this is a great example. It looks a little rough on the outside but is very nice on the inside. The cabin is good for a crowd. The lake is good for fishing, while I was there a ten year old kid walked in with a dinner size trout. When looking at the lake there is a constriction in the middle which is about 100 feet wide. Both ends of the lake are usable and the narrow point is mostly Lilly pads.
Link to Kenai Wildlife Refuge Area http://www.fws.gov/uploadedFiles/Region_7/NWRS/Zone_2/Kenai/PDF/cab_Vogel_Lake.pdf
Link to Recreation.gov to book cabin: