I think this is a great house for 2 people. The bedroom is small but cozy, with a door that leads straight to the terrace and a window giving a great view of Telendos. There's a lot of space for clothes and stuff, as the closet is pretty big.
The living room is really nice, it has a very big sliding door leading to the terrace - so you can have a lot of natural light inside, and of course fresh air :) There's also a pretty big TV screen - if you want to watch a movie, and a lot of books - but almost all are in greek :)
The kitchen is well equipped, and the place to eat...or have a beer (on the terrace) is fantastic :)
The wifi speed is very good, I had to work during the time we spent here, and there were no problems with the internet (good even for video calls).
Bottom line...totally recommend it !