The reviews of the Kenwood TS-590S are starting to appear on eHam.net and so far it seems that it is living up to what I had heard. Even some K3 owners are saying things like " I love my K3, but she has got some competition now in the TS-590S". Not everyone agrees on the quality of the TX audio but most are impressed with the RX. So far I haven't seen anything to put me off lusting after one. The fact that most of the not as good statements refer to rigs costing three times as much tells me that even though the price is twice what I would care to pay it is indeed a super rig for the price. If these rigs don't sell by the shed load then there is either no justice or another new rig from another manufacture about to emerge. Well done to Kenwood but don't sit on your laurels, the cheaper better Chinese alternative is being dreamed up right now.
For some further information on the TS-590S also see http://www.k4qky.com/amateur-radio.html in particularly the links page.