This is currently the best hotel I've ever stayed in Helsinki and the best value for money. Room was clean, in good order and condition. Personnel, especially at reception, is very friendly, professional and well trained. I had a standard room and there were complimentary instant coffee, hot chocolate, cream with a small kettle.

If you require a hotel for Business close to the airport, this is a good choice. Staff are very friendly and efficient and, while expensive (It is Finland), the restaurant is good.
Do not choose if you plan to spend time in Helsinki as you will find the journey into town by bus or cab, long or expensive!

Of all the main hotel brands I regularly use, Holiday Inn has the biggest variation in quality and so compare the excellent Holiday Inn Sisli in Istanbul with this disappointing offering near Helsinki Airport. At least the shuttle bus is free to the airport and WIFI is free to elite customers because that's all I have to say that is positive. Rooms are tiny (even "double" rooms).

When having an early flight, airport hotel is always a good choice. Holiday Inn had a nice sale at booking.com for a reasonable price. Room was quite basic and small, but with all necessaries. Hotel restaurant had full menus with prices of more elegant restaurant. If looking for more restaurants or to do, entertainment center/mall "Flamingo" is just 10min walk away.
Staff at Holiday Inn was very professional and polite. From price point of view, I would stay here again, but from all other point of views, there are few nicer airport hotels near by.
One thing that I still don't understand, is Wi-Fi for extra cost. Even though it was only 2,5€, why it is not included into room price? Pretty much everyone is using Wi-Fi anyway. Right?