My experience has been very positive. My new Phono-1 was marred by a loud hum. They shipped it back to me in 3 weeks and it now works beautifully. To my untrained eye it appears they replaced all the capacitors; they look different anyway, white Multicaps. They also upped the output at my request from 54 to 64 db, and they repaired some damage I had caused myself when I sawed out a stripped lid screw, removing the dent I made, drilling a new screw hole, and repainting the lid. All at no charge. Another time when I sent back a Line-2 remote that didn't work, they replaced it at no charge even though I admitted to them that it stopped working after my two-year-old daughter threw it across the room.
Sonic Frontiers Tech Support is Great
The friendly gentleman Nick Spent 15 minutes on the phone with me discussing a minor adjustment on my SFCD-1 CD Player, & Tube selection etc. today. He is great very knowledgable , Patient & helpful. He was also kind enough to send me some screws for the case at no charge. A very nice company to deal with!