I stumbled upon a Icelantic demo day @ Loveland last year. Ben, the owner/founder, is really cool and I picked his brain/interviewed him casually for a good 45 minutes.
I got out on a pair of Nomads and Shamans. Both handled windbuff off of Chair Ocho with considerable aplomb. They are both fairly stiff and burly skis. The only problem I found is that they were a bit rough on the moonscape and icy moguls, of which there were quite a lot down lower on the mountain. I actually got the tips of the Shamans hooked up in the harder stuff (they are HUGE, btw). I also found the lenghts to be a bit too short for my taste. If you were only skiing powder and the trees 100% of the time, then they rip fantastic. But if you're skiing 50/50 conditions (i.e. pow up top, mank and ice down low) they aren't optimal in my opinion.
I told Ben all of this and then added if they made the ski in at least a 178/180, I'd be down with them in a heartbeat.
Have you checked out their website: http://www.icelanticboards.com/
They are very responsive to inqueries and host a ton of local (Colo) demo days. Heck, the day I demoed they even gave me a beer for trying out their skis and providing feedback. That's customer service!
Other'n that, i would say to definitely demo them before you buy because they are not for everybody (like a lot of the smaller, boutique ski companies out there, they are making a superior product that fills a specific niche and is not intended to appeal to every type of skier).