This is a very slick underground apartment. We really enjoyed our stay here. There is a full kitchen and a spacious bathroom with a very welcome HUGE shower. Also included is a washing machine, although there is no electric dryer (there is a drying rack, iron, and ironing board).
If you are renting a car and plan to tour all of Slovenia (as we did), it is well worth it to pay for the additional parking space. You have very easy access to the highways while still being in close walking distance to the pedestrian-only city center.
The apartment does sleep up to 8 people but the sleeping area is essentially one large room with a lot of pull-out beds outside the main master bed, so do plan to get very friendly with your roommates.
There is also an excellent breakfast spot around the corner, Le Petit Cafe, which makes both excellent cappuccinos + macchiatos as well fairly priced smoked-salmon/avacado eggs benedict and truffle omelets. Yum.