My wife and I stayed in cabin #5 for two nights while visiting the Black Hills. The cabin is reasonably spacious for two, and was very well equipped with fridge, microwave, stoves, and a shower (plenty of hot water and good water pressure). The location is pretty much ideal: it is only 5' away from 'downtown' Custer, 20' away from Mt Rushmore, ~10' away from Crazy Horse Memorial, and 20' or so from Needles Highway/Wildlife Loop/Wind Cave NP. In other words, you're in the middle of everything.
The owners are lovely, and do take very good care of their property. Everything was spotless - they're also very knowledgeable. The first night we were there, they told us about the blasts at the Crazy Horse memorial. We would have completely missed otherwise!
Every evening, we were welcome by a few deer, happily hanging out outside our cabin... other customers were very respectful, and the overall noise was very low.