The cave is just as described. It is very small, but in such a good location for such a good price I couldn’t ask for much more. It might be a little tight for someone very tall, I am 180cm and it was just big enough :). From here you can walk to many bus stops and stations, great coffee shops and fotografiska, which is a must see in Stockholm. Petra provides a towel, coffee and some basic shower items. Super cozy at a great value. Highly recommend!