Tray ceiling

[Jeremy Yorke]

I am entertaining the idea to instaling a tray ceiling domething like this www.signaturelighting.net/images/page21_1.jpg (http://www.signaturelighting.net/images/page21_1.jpg) . Any one of you have any experience in constructing it or have one in your home . It sure look nice and very exotic but what are the downside about it? maybe to maintain them? are they becoming more popular? or this something only belong to museums
you thoughts is greatly appreciated