We really liked our stay at Elviras place.
The location is perfect if you want to see as much of the historical center as you can.
The place itself was very clean, but a bit small. The shower is directly next to the bed and there isn't a real door in front of the toilet, so you should go with people that your comfortable with. If thats the case you are good to go.
Elvira always responded very quickly.
We had a great time.