Esoteric integrated amplifiers

Hi all,I'm looking at buying a class D integrated amplifier. The most striking I've come across so far are from Esoteric - The I-03, and I-05 models.

Can anyone comment on the sound? They're very pricy. No doubt the build is great, but I'm not 100% sure on their class D technology. There's not that much review material I can find on the net.

Thanks in advance!