If you stay at Jon's place, you'll find out that you've made a great decision. From the time that I first made an inquiry, up to checking out of his apartment, everything went smoothly. You won't find any problem communicating in English, and Jon is very quick to respond and he addresses all your concerns. His apartment is lovely, and you'll have access to common spaces (kitchen, living and dining room). The room overlooks the garden and pool and so you'll have a restful view. The apartment is a 4 minute walk from the metro station, and if you want to go to the city centre, there's a direct line that will take you there in 20 minutes. I attended a congress at IFEMA while staying with Jon, and the daily commute through the metro was quick and easy. Breakfast is good and the cake and cookies that Jon baked were delicious. He asks your breakfast preference and will accommodate your request. Also, whenever Jon or I would leave the apartment, he would always assure me that I could contact him if I have any concern. I could go about doing my own activities, but Jon also regularly engaged me in conversation, especially at breakfast time. Jon was very welcoming and I'm happy to have arrived as a stranger, but left as a friend.