How good is the Technics 1200 Mk2 with all the KAb upgrades?

"Compared to my well-established aural memory..." Don't ever put much stock in whatever follows a phrase like this. 

The KAB fluid damper, rewired toneram, Isonoe feet, adding a center weight all will be audible improvements on the 1200. It's good to know that the table performs well enough to let each tweak be clearly heard. At every level from untweaked to maxxed out, it's competitive with most pricier tables.

It's popularity with DJs due to its durability will take the shine off for some audiosnobs, but remember that it wasn't designed to be a DJ table; it's for audio enthusiasts and became popular because its reliable speed stability was hard to beat and trickledown tech was unmatched due to the huge investment in analog that Technics had already made.
Cheers,
Spencer 

Read the review. He had the Basis for awhile then set up the Prime. He didn't A/B the two. I still think its pretty valid but obviously not perfect. I have the Prime and he nails some of its characteristics. I also have read his review of a cart I have and he nails that too IMO.

Never had the pleasure of one of KAB's Technics tables, but if they're anything like the old Technics RS 15xxx series R2R tape decks they gotta be a work of art. The Jelco 750-series arm is head and shoulders above any $~1,000 Rega arm. For anyone going for a vintage belt-drive Thorens or AR, Dave at Vinyl Nirvana (www.vinylnirvana.com) has a beautiful supply of restorations reasonably priced.

I've heard them sound great. There are other upgrades that also take it to a higher level including bearing upgrade, platter upgrade(Mike New from Australia does what are some of the best, external power supply and Isanoe feet.
Cheers,
Spencer

Alas Mike New was discredited when his platters were found to be warped -  not the earlier ones apparently.  To my knowledge no-one got a refund.  I bought his bearing on the strength of AOS recommendations but it was a total waste of money, and I upgraded to a bearing where the thrustpad was made from PEEK, a very hard species of teflon.  VPI now use this as well.
To OP.  The 1200 family are a pretty decent deck out of the box - just make sure you service the bearing. (PM me if you need help on this).  There are two fabulous features.  One is that it has a superlative Direct Drive motor, second is that it lends itself to all manner of tweaks.  These tweeks are meaningful and can be cheap.  They fall into three groups (1) further improving the speed, (2) anti vibration measures (3) tweaking or replacing the tonearm.  The 1200 can be a hobby that you can do one upgrade at a time and have a lot of fun in the process.  At the end you have a deck that can justify cartridges like the Ortofon Cadenza Black or better, (I have a Benz Wood).

Ok guys I found the build sheets- Here are the upgrades that were done-
Sl-1200mk.2SE, 78 mod, SL-1200 power supply, record clamp , strobe disabler, tone arm damper, 1200 LTD headshell, isolation feet, cushion feet,
tonearm rewire cardas- So there you are - What else needs to be done and how good is it with these upgrades- thanks so much for your input!!!