Very easy to get to once you work out that the no 16 tram leaves from the other side of the station from the airport bus.
its a lovely apartment, well furnished and equipped with everything you could want but the second bedroom hasn't got a door so privacy can be an issue. We enjoyed sitting out on the balcony in the evening.
Trams into Basel are frequent and stop nearby. The main station is only a few minutes walk away with trains to everywhere you could want to visit. We chose it because it is near the station as a base to explore Switzerland