I have an Ultra Thin Date.
It's a nice piece, but at 40mm, it's probably a bit big on my wrist for a dress watch. If you have bigger wrists that won't be a problem. That said, it's as light as a feather even in gold, and slips under a cuff nicely. Build quality is excellent. I should put up a movement shot: it is a thing of beauty.
As Thom4711 said, don't pay retail. The RRP on this one is £11,800, and I was offered a pittance as a trade in last week by one of the big names. I wasn't expecting rock solid residuals, but the offer made was taking the mickey.