I'm from Russia, occupation aicraft maintanance engineer, 27 years old, travelling is the best thing man ever can do :)
Sergey and his girlfriend have been 2 very quiet guests and there has been a minimum of talk with us, wxcept for recommending them to close the lift doors! So in way they've been good guests, but we like to create a sort of liaison with the people coming here and some, like Sergey, to keep to themselves.
I hosted Sergey and his girlfriend for 1 night.
The overall experience was goog: they have been nice and polite.