I've have Matrix Mini for about 9 months in my system and this little device left me with very good impressions. For this money one can hardly find similar performance and such an extensive features list. The DAC was a bit on a smooth side, relatively detailed and very pleasing to my ears. I never planned on using it that long in my system, but when I got it I struggled to find a replacement to it that would produce measurable improvements to the sound. The only drawback of Matrix Mini is its basic USB implementation, so if your source is PC/mac/laptop, then a USB-SPDIF converter is a must.