I stayed at Niko's place for a few days for a conference with some friends. Niko was always really quick to respond, helpful, and friendly. The location of the apartment is great - quiet, residential and private but walking distance to bookshops, grocery stores, coffee shops, and restaurants on Colfax. You can also walk to downtown. The botanical gardens are close, too. We had a great stay and appreciated amenities like the coffee maker (Kruger). It was also easy to come and go. I met Niko's huskies briefly, who are very friendly. I highly recommend you stay here if coming to Denver.