I am renting big adorable room on the third floor with two beds perfect for 2 travelers or couples. Included is a good desk with chairs and couch. I always make space in a closet for you to keep your stuff and feel like you are at home. This apartment has two rooms, so you would be sharing the common space (kitchen and toilet) with my Finnish roomie girl.
Tram stop right in front of the apartment, line 3 + 9 both going to the center (10 mins). Metro station Sörnäinen only a few blocks away.