Hello,
I owned the Acoustic Signature Mambo in the past and think it was an excellent table. Better than many higher priced tables I've heard since. Wish I never sold it....
I now own the Ascona. But it has been used in a different, low-frequency limited system so far. Once I have experience of using it in my main system I'll provide some feedback.
Anyway, I highly recommend AS tables. I suspect the Storm is their best value today. The Novum also looks very interesting.