Pretty much what other have said, this place really comes down to a fantastic location, only about a ten minute walk from the Central Station and literally steps away from St. Catherine and lots of amazing pubs, restaurants, stores and pretty much everything else you could want.
The rooms are nice and clean with lovely hardwood floors and they appear as though they've quite recently been renovated. Not huge and not much of a view but there's so much to do in the area that it's hardly an issue. Some have commented on the size of the bathrooms but I never found it to be an issue whatsoever while there. They were clean, modern looking and spacious enough. The staff was perfectly nice and all the amenities are just fine. Again, if you're not going to be spending a whole lot of time in your room or in the hotel, it's more than adequate.
There's also a Cora's (breakfast place) conveniently located in the lobby, though with so many options nearby it's more a luxury than a necessity.
The Best Western Europa is a solid value in a great area and a good night's sleep. You get exactly what you pay for and I'd gladly stay again.