Karl's place is clean and well-located in a lovely safe neighborhood with easy parking. However, we found that the apartment not well suited for two persons sleeping in the bedroom. This issue for us was that the bed has a lightweight metal frame with thin metal strips and small springs supporting the mattress. Any slight movement in the bed results in much creaking noise that disturbs sleep. This is especially problematic when two people share the bed because the small bedroom requires the bed to be flush against one wall on one side with only a small distance from the wall on the other side. One person must wriggle to the bottom of the bed, a very noisy result if the other person is sleeping. A substantial frame supporting a mattress and foundation would help, or a single sleeper might be less troubled with the current arrangement,
Karl responds rapidly to questions, but does not always follow through. We told him immediately on arrival that the hair dryer was missing. He said prior guests must have taken it and he'd have one delivered, but that did not happen. We knew that there is no kitchen but we couldn't use the coffee maker that was provided since there were no cups suitable for hot beverages. We mentioned this to Karl, but no mugs were furnished, although mugs were shown in the photos. (There are plastic cold cups, but they don't work for hot drinks.) Part of Karl's cleaning service should include a checklist to be sure that all the stated amenities are present for each guest.
A very positive feature of Karl's place is the washer/dryer in the unit, which is rare among AirBnb's. But Karl could really up his host game by providing a small amount of laundry detergent. Travelers don't bring that with them, and would have to buy a full container in order to do one small travel wash.