I'm stunned... the original unit of mine (now for sale here http://shadowmusic.bdme.co.uk/viewtopic.php?f=28&t=9855&p=70216#p70216) is brilliant... better than MagicStomp, better than my original Meazzi (at only £1800), better than Q2 eftp, easier than an ESE and sound quality on a par, and equally as good as the Catlinbread I borrowed from Robbo... As good as Atlantis and easier to use... (I've owned or used all of these)
But the latest valve pre-amp version is even better. How? Words are not very useful in trying to describe this. The sound is richer, more sonorous... just... it's just ... right.
I'm not going to post sound files 'cos I can't see the point. What you hear will depend on how well I can record it, the eq I use, and any extras I add in (like reverb and compression) and what you play it through... even how good your ears are...
So I'm just telling you based on my experience - you'll either value that... or you won't!
There you have it... if you want a better echo unit, buy my original unit. If you want a vintage echo unit, buy my Binson (it is... what is is... a fully working old echo unit) but if you want the best I've ever used contact Ecca, and a week later you will be a very happy person.
p.s. No genitals were twisted before or during the writing of this wholehearted recommendation...