First, dealing with ZStrings was excellent. A fair price on a good product and outstanding customer service.
Review: The Boss Katana-Go2 is the best mini headphone amp currently available. Purchasing the accessory case is highly recommended. Of the 30 preset tones, I was able to find 7 or 8 clean, slightly over driven with reverb effects that are really useful for me. The BKG2 is intuitive to operate and includes a good on board tuner. Overall, the Boss Katana-Go2 is a fine and very useful product and kudos to Boss, not made in China.