The chip itself is only a tiny bit of the total sound signature. Their previous designs do have a more "organic" sound than other dacs at their price points (even the iDAC, which uses a Sabre.) They are not thick or slow sounding though.
Humm, that's weird, because the Sabre chip is used is used in many excellent DAC's such as the Benchmark DAC2, but i guess they wanted a rich, bass heavy sound , and not detailed and Analytical sound, which is OK.