Just got this tuner and compared it to the $400 Integra TUN-3.7 and Yamaha TX-1000U. I used an outdoor TV/FM antenna with a 3way splitter swapping the outputs often.
I must say the reception in the low fm band (87.5-92Mhz) is problematic (HD or-and analog). I couldn't get at all 2 stations, and 2 came in with a lot of noise. My other tuners could get them clear in mono, or with some static in stereo.
The Integra locks on HD faster, Auvio blinks alot on distant HD.
The analog output quality is below average, highs are lacking and stereo image is weak. Optical and coaxial outputs are great, as good as the Integra's outputs ( Tun 3.7 has only analog outs).
The Integra gets hot during operation, Auvio stays cool to the touch. I guess the interior has some room to breathe.
Yamaha sounds nice and warm, but cannot compare to HD channel of a good quality broadcast.
Of course this tuner its all plastic and light weight, but it looks good and the remote is big and feels solid.
AM HD reception and quality is the same (good) on both tuners.
Overall a good City tuner for the price, if you don't use the analog outputs and don't need super sensitivity and selectivity.
Edit: Pictured is Yamaha TX-930, i moved the TX-1000U to another room, both tuners are comparable.