I honestly feel that Aric is a very good value , as for build quality very solid . If I had to nit pick there are 2 things I dont care for . One being the blue leds in meter , I did recommend that a switch option be added to disable the led portion. The second would be the speaker terminals but I am very fussy with this on any amp or preamp I always opt for a upgrade . Im sure Aric is willing to upgrade as do most . There are many people that wont opt for these upgrades and are more than happy with stock configuration. As for sound Its excellent no complaints , I upgraded all tubes as I always do but even with included tubes the 211/845 sounds excellent. Also customer service is top notch Aric always replies and is helpful. Sent from my iPhone using Tapatalk