How good is the ae3 djh?

May have a chance for an almost new hotrod version. Purchased less than three months ago. Individual wants $1250.00.
I have been seriously considering a tube pre to incorporate into a h/t system for some time.
The ae3 would connect to a Bryston 3bst for 2 channel.
Current 2 channel is squeezebox touch, Lite audio dac 60, Marantz 6006 surround receiver. Am hoping to bring the 2 channel experience to the next level.
More instrument seperation.
Defined soundstage fr to back, side to side.
Full rich sound.
Thanks
Steve