I have owned the Saga+, Freya+ and (currently) the Prima Luna Dialog Premium. The Schiit pre-amps were fantastic and served my needs for a couple of years. During that time I woudn’t have heard a difference in an A/B comparison between Schiit or PL or anything else because I hadn’t spent enough time on focused listening. When I started hearing more detail I upgraded everything piece by piece until the Freya+ was finally the weak point. Tube rolling helped a little but not enough for me. The build quality of the PL is superb so I took a chance and I couldn’t be happier. How is it better? In every way you can imagine. But that is just in my system (which you can look up in Agon virtual systems), YMMV.
I’m a die-hard Schiit fan :) I bought almost everything in the entire catalog at first and I will never part with my Yggdrasil(A2+Unison), Vali2, or Modi Multibit. The rest has been superseded and sold off to inspire others.