IHG claimed that Indigo brand hotels would be their boutique style and in some cases it is true but others they are just sort of odd, quirky or tacky

the best one I have stayed at out of 7 or 8 properties is the one in St Petersburg, Russia

good location adjacent to main tourist area, quality furnishing, classy decor, professional service, high ceilings, free modest little mini-bar, free bicycles to use, rooftop terrace, decent restaurant and bar, spa + indoor pool
my only beef is there are no bath tubs in any room, even in the suites, this would be a "deal killer" if I was here during the winter

others I have stayed at but was less impressed > Barcelona, San Jose, CR, Dallas, Miami Lakes, Madrid.....