First of all: there are some better ways to tell the guests not to smoke in the room. Currently, the owners threaten to call the police and inform that, I quote, "your out of the guesthouse anyway". This poor-worded piece of paper put a serious shade on what would be otherwise a very pleasant stay, made us feel like the guests are a burden for the owners and we are rather unlikely to go there again - even though we don't smoke at all.
The room was very comfortable, although some of the furniture had seen some better days. It was perfectly clean, though!
If you're not a smoking "criminal", I would recommend this place for a night or two.