We stayed a whole week in this apartment. In general, we had a good time here!
At first, when you enter the place, it smells a little humid, but when you leave the door to the 'smoking area' open and keep the door to the cellar (and the kitchen) closed, you don't smell the humidity anymore. I do think it's important to leave the bedroom door open at night to breath fresh air!
Apart from that, the cellar is not really an exiting place to stay, we didn't go there for the whole week, even with a jacuzzi installed I wouldn't spend time there...
Also, when using the toilet, make sure it doesn't leak (on the left side) when you leave. We were welcomed 4 times by a swimming pool in the bathroom when coming back home...
Don't forget to bring a little laptop or another device with a USB entrance to use the internet because there is no WIFI, only a (slow) USB-dongle connection.
About Claudette: she was very friendly and always responded quickly to my emails but unfortunately we couldn't meet her.
And finally I want to mention that this beautifully decorated apartment is the perfect place to discover the whole island, since it is located only 5 minutes away from the bus terminal (and Valletta)!