It was a very nice stay but a bit challenging.
First of all I think that a microwave and a kettle are a must have for each and every place. This place has a gas stove only. So, getting some hot water for your tea is a little bit slower than you might be used to.
Gas heater gives you some heat up to comfortable temperature, but it also makes the air very dry. So if you have a sensitive nose or eyes you may be not that happy.
There is a boiler to provide hot water for the sink and shower but this boiler is not powerful enough for taking a bath. It's enough for multiple showers + regular basic use though.
Neighbors are watching TV all night very loud - sometimes we heard their TV in our place louder then we talk to each other.
Wi-Fi - first it was very bad (<5 Mbps download / <20 Mbps upload) but if you put it ON the drawer cabinet instead of hiding it on the floor behind it you can get absolutely awesome connection ( ~300 Mbps download / ~50 Mbps upload).
Everything else is good: location is perfect, design is quite nice for a nostalgic type of person, the place is clean and comfy enough. I think it's much more suitable for a warm season or short stays though.