I'm a Bel Canto dealer, so take this however you'd like:
I've been a dealer for them for almost 3 years now, and I have only had one unit come back for a repair; it was a DAC3, and there was an issue with the digital input. The issue arose about a month after purchase, and after I reviewed the unit with the customer, Bel Canto replaced it with a brand-new one within a week (they shipped directly to the customer even before they received the broken unit back from me). Note that Bel Canto products have been my best-sellers over the last two years, so having only one unit come back out of dozens of units sold is IMHO pretty good.
I can't speak to the CD-2 as I don't have a demo unit and I don't have any customers who have bought one (most of my customers are into computer-based music), but I'll say that the reliability of their other products and their customer service has been top-notch...