Helder is a very lovely person and a GREAT host! He welcomed us at the airport and drove to his appartment (we were travelling with 2 very young and 1 small child and it was extremely convenient for us - thank you Helder!). When we got there, he explained everything and showed us around. His apartment has everything you need, is well designed and comfortable to move around. And most of all, it was very clean! The bedding and all the towels were fresh and smelled amazing. The beds were very comfy and even though we didn't ask for a cot bed Helder got us one. Communication with Helder was great, he responses very quickly. He also sent us a few messages during our stay asking if we needed anything and making sure we were fine. The location of his appartment is perfect, very close to the Metro Station, which takes you to the centre of Lisbon in 15-20 minutes. Not far from the appartment there is a lovely bakery, great for fresh morning breakfast and pastry with an espresso :)
All I can say, my family and I are VERY happy with our stay at Helder's appartement. I hugely recommend it to everyone - you won't be disappointed.
Enjoy!