I like the idea of having an efficient class D amp. Hindi ba ito mas vulnerable sa sira or Im better off with NAD 7050?
Class D amps have been around for sometime, and is quite popular in mobile audio (because of a car's limited ability to support heavy electrical and thermal loads). So far reliable naman sila basta properly designed.
My friend has a 10-year-old Yamaha MX-D1 Class D HiFi power amp that's still ticking like new. I've had Class A and Class AB amps that failed much sooner.
Aside from recent Class D specialists like Wyred4Sound, TacT, Lyngdorf and NuForce, I don't think traditional (and more established) brands like Kharma, Mark Levinson, MBL, Anthem, Bryston, Classe, Jeff Rowland, Cary, Audio Research, Musical Fidelity, Linn, Naim, etc. would bet on having Class D products if it would ruin their reputation.
On the more affordable end, Rotel, NAD, Marantz, Pioneer, Lehmann, Onkyo, Cambridge Audio, Creek, Parasound, Acurus, Yamaha, Cyrus, Roksan, Sonneteer, etc. are on it too.
Though some have fully switched over to a complete Class D lineup, most of the brands above sell Class D products alongside traditional topologies (letting the buyer decide on which path to choose).