Independent boutique hotels are all the rage, but their chic rooms and super-cool public spaces can come with a high price tag. Not to be outdone, many well-known hospitality brands have set about replicating the feel of such accommodation, and some independent brands have expanded into mini-chains. Here are some boutique brands that hit the spot, with a new generation of characterful hotels cropping up around Europe's cities, many with rooms for under £150 ($181) per night.