Good mixer for jamming with multiple instruments. The effects are okay nothing special to write about but are still usable. The usb out option works as intended with pc, mac, iPhone and android using programs and apps. Do note that galaxy s10+ and s20 seems to have problem connecting with usb but I think it's on the phone software. Overall a bang for the buck usb mixer. I am happy with the purchase even with the slight snug with my galaxy phone.
The analog mixer is a great value for the price. Similar features on other brands cost you much more. I was looking for an analogue mixer that had pre-amps for the mic inputs. Initially chose the model QX1202 and since this was not available, this was replaced with QX1204. I am quite satisified with the purchase.