Topband: Amp Supply LK-500ZC

[Joe]

I'm looking at a Amp Supply LK-500ZC amplifier.  It has the QSK board
installed. I will use it on 160,80 and 40.  However, I would like to
know if this amp has any issues on 160 as I will primarily be using it
on 160.  Any experience good or bad in general with this amp?  It seems
to get favorable reviews on EHAM however I have read conflicting reports
by others.  Thanks for any advice.  -Joe N3HEE