I don't know about the Enstrom, but the comments regarding French vs American machines are very true. I regularly fly Sikorsky, Bell and Eurocopter helicopters and there's nothing to beat the Eurocopter products for flying enjoyment, much lower maintenance costs and reliability. I spent the first 21 years of my flying career flying Sikorsky or Bell and it was a revelation changing to Eurocopter helicopters. The American manufacturers rely too much on the loyalty of North American customers to American products, despite the fact that so many of them are old, old designs and technology.
I think Nick has made the point very well, because the S92 is about the only new American machine available out there, but the market for helicopters that big is pretty limited.