We stayed here en route to our final destination in Finland which required us to take another 2.5 hour train from Helsinki. Since we were travelling from Asia we thought it best to just stay the night in Helsinki then take the train the next day. The hotel is literally 200m (or less depending on which entrance you use) from the Helsinki Central Train Station. It's also cloze to the main bus station. After 18 hours of travelling its location was simply perfect. The hotel is minutes away from some of the sightseeing spots in the area. There is K supermarket across the hotel as well.
The hotel staff is friendly and was very helpful in providing us tips on how to get around and look for open places (we arrived on a bank holiday weekend). Our checkin was quick and we were immediately given access cards to our room. The room was average in size but it had complete amenities. The bathroom was quite big for a european hotel and overall the room was clean. There was small LCD tv which had some english channels and lots of electrical sockets in the room to charge our phones and other gadgets.
The use of the sauna is free (its open twice a day) and although the sauna is small it was nice and very well kept. The gym is small but had a good variety of equipment.
Highly recommended from transiting travelers.