I demo'd a TechDas V in my system for a month and really enjoyed every minute. Being a fan of the Kuzma 4P9, I ended up going for a Kuzma Stabi R with two arm "wings". NO regrets! This table has excellent speed stability and weight. Translates to great dynamics and drama. Very enjoyable.
I don't really miss the the vacuum hold down offered by the TechDas (sonically) but that and the air bearing are clear technical advantages of the TechDas over the Stabi R. I used a Vibraplane for both tables. Some vibration isolation should be part of your table budget unless you go for the SME.