Perfectly comfortable, clean, and nice hotel near the airport. Free subtitle runs to it from arrivals quite regularly, or a can costs less than €10.

It's an airport hotel though, so it's miles away from everywhere apart from the airport. This is particularly true in the case of Helsinki. Pretty much othing else nearby.

Great option for airport stays. Otherwise, go into town.

If youre having a layover at Helsinki the hotel works fine. Otherwise look for something better in the city center.
Rooms are clean, but arent comfortable and cozy at all.
Breakfast and dinner restaurant offer great cuisine.
The free wifi is also a good advantage.

I stayed there for business in September 2011
Hotel offers quite a good breakfast, with large selection of breads, cereals, some fruits, eggs,etc...
Rooms are ok, free Wifi, the daily cleaning is minimalist though...

The NO NO is you are a tourist is to stay there longer than 1 night
The airport is 10/15 min away thanks to a free shuttle which passes by every 20 min and then downtown is like miles away.

there is a shopping center (jumbo) near by but onlly reachable by car since it s on the other side of a high way. It has 3 restaurants, in case you get tired of seeing the menu of the hotel.

We had booked the hotel for 4 weeks since the ofice was not so far, but after 2 days we canceled the 3 following week to be in town, it didnt matter that we had to drive 20min every day. The location is just plainly depressing.

Before flying to Europe we stayed in the Cumulus for one night. Hotel looks nice from in- and outside. It really is a airport hotel as there is nothing around, but other similar hotels, warehouses and office buildings. Checking in went well and easily. The reception desk´s location is a little bit odd, as it will block all the other traffic when having a queue. Rooms are nice and peacefull although the signs of heavy use is visible. Beds are comfortable. Dinner at the restaurant was ok. Good, but slow service. Maybe they need more staff over there. Furthermore the restaurant was decent and spacy. During our stay we faced a horrible morning due to many morning travelers.
Breakfast was hopeless as so many tables were not cleaned after previous eaters. There were plenty of tables, but no space for your own plate and glass of juice. Lack of staff again? Checking out was done in a long queue, blocking the space of other guests.
The next step was the shuttle bus to airport, which was stuffed full with people.It stopped, but there was no space. So we had to take a taxi to te airport. As the Cumulus is the last hotel in the shuttle line, you might get a rough ride, when standing with your suitcase in the aisle. Well it is free of charge, which is good.
A stay for one night is ok. Beware of the crowdy breakfast monent.