Over the years I've had a Michell Techno Arm, Audio Note Arm One (the current model) and the 10" Ace Space arm on my Space Deck. Sonically, the Ace Space is easily the best of that trio in my set-up, probably because of NA synergy I suspect. I was very dubious about using a unipivot because all the talk of wobbliness etc but, as mentioned above, the Ace Space does not feel at all like a unipivot when in use. It's well worth considering.