Bought my first Zus in 2006 (Druid MkIVs), they subsequently were updated to MKIV/08s and then sold for a pair of Essences. I was fortunate enough to be in a position to pull the trigger on a pair of the Definition MkIIIs recently. They have really completed the system. True output below 20 Hz really haves everything sooo much better, everything has a sense of weight.
I also have had an affliction for Class A solid state amps, for many years preceding that with a tube pre (Modwright). Recently having the opportunity to demo the Pass XA30.5 after using a First Watt F3 for a few years opened my eyes to what a bit more power (and gain) did on the Zus (the Essences at the time). One thing lead to another an I have a great Pass INT-30A on the rack.
My sources cover the spectrum of formats at 'reasonable prices', as I enjoy getting the best version of whatever particular music interests me, be it analog, hi-rez or redbook CD.
Analog - Not looking at any real upgrades. Really a great table cartridge and phono stage.
Digital - Recently both upgraded and simplified to the Lumin T-1.
Lovely. Nice homely colors and lighting. Just not sure about the position of your equipment rack. It looks to parked at an early reflection point and in such a position that your TT etc will be impacted by soundwave from the right speaker?