I've upgraded to the VAC Renaissance from the VAC Standard LE about 2 weeks ago. Conversation with a few 'Goners a month ago really got me interested in the Ren.
As "adequate" as the LE was IMO, the Ren is in a different level, as it should be. Build quality is excellent. The pics don't do justice to this preamp. It is dead quiet and not only is the soundstage broader and deeper, it's also taller. Notes that were barely audible on the far left and right of the soundstage from the LE is now more distinct. The bass is outstanding, going deeper, and much cleaner that I could've imagined. Grain and haze is non-existant. I wouldn't have called the LE veiled, but the transparancy of the Ren is amazing. Music has a whole new flavor for me.
Thanks to Kevin Hayes of VAC and to the fellas. It's an expensive decision but a whole lot easier to justify.