Haven't heard the MkII but the Shelter 901 MkI is one of my all time favorite pieces of hifi gear. In a Linn Ittok LVII arm on a LP12 with good tube gear and good speakers it can be almost breathtakingingly delightful (that's very good :) from the very low end thru the mids to the very top end - with great imaging; it does everything.
