I've spent here one night in August 2012. It's a good hotel just outside of Tallinn old town.
The hotel is really modern
Rooms are very very nice (I had a large room on the 6th or 7th floor, looking at the harbour... fantastic)
Breakfast is good
Staff is very kind and helpful

I do not see any downside, I suggest this hotel to everyone both for business and vacation

A friend and I stayed here during a short weekend trip from Sweden. We were picked up at the airport by a extremely friendly young man who made great suggestions about what to see and do during our visit. He even called a restaurant to secure reservations at the last minute. All of the staff was just as accommodating.

The hotel is very beautiful. It is not large and impersonal, but neither is it cramped. It it very modern, but not oppressively so. The views from the water side of the hotel are beautiful, and definitely worth the upgrade.

The rooms are spacious (US-sized, not Scandinavian-sized) with beautiful, natural hardwood everywhere. There are subtle elements of traditional Estonian craftwork in the appointments. They have tubs in the bathroom.

The breakfast is very ample, catering mostly to Finnish/Swedish guests. It can get quite busy during peak times, but it is not overwhelming.

The location is quite good, but you will have to walk 2-3 blocks to the old city; however, there is a full grocery store and shopping center just across the street.

I would highly recommend staying here.

After 2 days in Euroopa hotel in Tallinn I could say "very good place in Tallinn" about it. Nice hotel, calm and clean room, good and quite good select of breakfast food. The Old Town in only a few minutes away. In ten minutes range there are three shopping centers. Airport transfer offer is very reasonable and the time (during weekend) takes only 15 minutes. A few steps ahead you can reach ferry terminal and supermarket. I haven't known that Tallinn is so nice... ;-)

Great stay in the Hotel Euroopa. Its in a pretty good location. The rooms are very clean and a good size. The breakfast is really good and has a massive choice. Great value for money well worth a visit. Tallin is a stunning city too.