Can't say I do, they're frakking ugly.I love BILLYs. I have four in my study.
But incredibly practical, and with glass doors on them it means I can store books in the bedroom without having to give dust on my books another thought -ever.
At some point in the future there's going to be world peace... this is possibly achieved by the leaders of the two most antagonistic fractions finding themselves in the same IKEA-store buying BILLYs, and the rest -as they're going to say- is history.
I agree, they're not beautiful. I love them because they are flexible (so many sizes! optional doors!), easy to put together, affordable and fairly sturdy. They make a decent-looking, simple background for the clutter in my study. I wouldn't dream of mixing them with the antiques and other "good" furniture in the rest of my house!
I did the IKEA thing, too, but went with 'Hemnes' instead in the black-brown colour.