I'm beginning to use the iPad in a business (casual) setting, and the Eco-Vue has been the perfect case so far. Very professional and discreet when closed -- blends right in with everyone else's planners and notebooks.
One interesting find so far is that with the case open and propped in the landscape orientation (i.e. ready for typing), I find the barest hint of fingernails will make something of a "click" sound as you try to type on the screen.
While it's certainly no worse than someone who brings a laptop, it's such a new and novel sight/sound that it draws much more attention, whereas everyone is completely attuned to the sound of Thinkpad keyboard typing... to the point where it's barely even noticed.
This may be true for any case that props up, and the simple solution that day was just to flatten it on the desk and use the pads of my fingers. It's easy for me to go home and trim the hell out of my nails, but this aspect may be worth noting for the ladies out there who keep some length of manicured fingernails or whatever.
Overall, very, very happy with the case. Even if I find one I like better for other settings (Otterbox for traveling or whatever), the Eco-Vue will be kept in the rotation for work and professional settings.