Having owned and heard ATCs of all sizes in various rooms, while it is an awesome speaker, it is not exactly a speaker for rock, pop, disco "enjoyment".
It is a very revealing speaker. It will tell you everything about your walls, floor, ceiling, doors, electricity, cables and of course the recording. It is quite tricky to set an ATC and just immerse in musical enjoyment, especially for genres which are recorded for mass audience.
What you need is a bit forgiving, silky sounding speaker without compromising too much on fidelity. Check out a Tannoy Stirling, Proac Response series or a nice Bookshelf speaker like Harbeth P3es with dual subs