I bought this DRRi on december of 2018 , the amp it's fair light (19kg) , well assembled . The clean is ok , chimey or bassy according to the Eq. used , the tremolo channel it's nice but reverb is too much after 2-3 of value , it takes od pedals really bad because of the jensen speaker and the bright cap that make them sound harsh and fizzy , very bad for people who use distortion and od pedals . if you leave the tremolo knob turned , you could hear a "bop" noise in the normal channel , depend about the rate of the tremolo on the vibrato channel .
For an 1400 euro made in usa single channel amp I expect more usability and less quality issues.