There is no staff at this apartment after 5 pm so you are on your own when you arrive. No directions or information for airport, train, taxi, or bus. No directions for places to eat, etc. Once you figure out how to call a taxi, It is a 45 Euro taxi ride to the Helsinki airport. This would be good for a longer stay where you can figure out where things are located, but it is very difficult for a one or two night stay.
My room was clean, comfortable, quiet and half the size of a normal hotel room. It is a good value but you have to get past the inconvenience of no help from staff.