@output555 , I own the s2100 and concur with blisshifi's assessment.
The s2100 has a build quality well beyond their standard big box store units. I use the native output for any 2-channel SACD playback and a Holo Audio May DAC for any redbook playback. The s2100 is an overbuilt built and high quality transport, but the May DAC does provide a wider and more 3D soundstage. Not sure if you are considering used, but TMR Audio has one listed on their site at a fair price. No affiliation.