I can say that Artur is amazing though I haven't met him in person. There was a little misunderstanding in the beginning with our arrival time and we weren't able to get into his apartment. Gladly we figured that out the morning before arriving and Artur was so kind to book us an hotel for the first night and even included a breakfast as an apology. He went out of his way to make us feel comfortable. During our whole stay communication was easy and he also has a nice and clean apartment.
You won't regret booking with him.