I have the Aria. It's a very well-built piece of gear. I find it to be a tad bright, but then again I have found that with a few SS amps.
Unlike @twoleftears I replaced the Aria in favor of a Rogue Cronus Magnum III. Still have the Aria. Part of me doesn't want to sell it. Maybe use it for a second system.
Both amps represent great quality and value, IMO.