First impressions were good. The camera is reassuringly heavy (and when you're spending more than £13k on the body alone, you need a little reassurance), and it was fast. Obviously, not fast by DSLR standards, but this is a different environment and in the studio the S-System probably outpaces the competition.
Unlike other medium format options, this camera isn't modular - there's no digital back here - and everything is contained in a relatively air-tight, heavy duty skin (I'm told they test this thing underwater) so you know your investment is pretty well protected. On the outside it's pleasingly pared-down with only the necessary controls, and its large screen is more accurate than I'm used to, which is a big plus for me as I don't always like to shoot tethered, especially if I'm on location with minimal amounts of kit.
Inside it's got two gig of RAM, and LEMO USB connections make for fast tethering. It's got built-in GPS for extra EXIF action too, not that I'd ever use that, but I can see how some might. The sensor has a resolution of 37.5 megapixels, but despite being less than the Hassie, for example, it still outperforms its competitors thanks to the quality of its glass. And with regards to that, all I can say is "blimey". It's just stunning. There's a load of technical info available on the lenses, but I don't understand it, so all I can say is that if I could strap one to the front of my Canon I'd do it in a heartbeat.