I spent a pleasant five weeks in the apartment.
It is well equipped for a longer stay, including teleworking, with a nice working corner with a desk and a comfy chair.
The house is situated on a busy 4-lane road, that makes the apartment a bit noisy. However, the windows have very good insulation, so there's very little noise with closed windows.
The kitchen is adequately equipped with basic utensils, but could do with a microwave and a modern coffee maker (at least for me)
There were some minor cleanliness issues (a baking tray in the oven, the fridge, the cover of the sofa some mould in the shower), but the shower and washbasin itself as well as the bedlinen and towels were immaculate. (I also have to add that I am very particular about cleanliness, so might have a higher standard than most.)
Diego was easy to communicate with and always replied promptly.