I agree with One Day's post above. I did a lot of online research before purchasing a Chapuis double in 375H&H and as I have posted on here before, I really love the gun. I've handled, but not shot, Heym at their booth at DSC convention, as well as Verney Carron. I also looked at a Holland & Holland double at their gallery in Dallas. The Holland & Holland is an amazing work of art, but over $100,000. If I were in the market for a new double and my budget was around $20,000, I would probably go with the VC. Their round action model is a beautiful rifle and feels great in the hand. I liked the Heym, but have always favored sleeker Italian or French design, i.e. I am a Beretta guy for shotguns rather than Kreighoff. Just personal preference. If my budget was no more than $15,000 I wouldn't hesitate to buy another Chapuis.
I had seen the quote from George Caswell at Champlin Arms that One Day quotes above and I've met George (bought a shotgun from him). The well-respected gunsmith J.J. Perrodeaux is in the same shop as Champlin and they work closely together and their recommendation of Chapuis is something to respect. A bit more about Chapuis: the small, French company was acquired last year by Beretta, so they will have Beretta standing behind them for the future. William Larkin Moore in Phoenix is a Chapuis dealer also and I bought my rifle second hand from them at a substantial savings over the price of a new one.