The Octaver on the SS seems pretty good and doesn't run out of steam when you get down to A.
I do think the number of presets could be a limitation, but I don't know how many different sounds I really want, so it may not be a practical issue. At the moment it's sitting next to an EH Synth 9, which has 9 presets you have to select by turning a knob, so the SS is more usable in that way at least.
The SS seems to track very well, which is its key feature.
I'll be trying its programmability at some point.
The link also complained about the dry sound leaking through; actually I like to run to two amps, one dry, so that's not particularly an issue.
Mine is the Mk.II/facelift one - I don't know if there is any difference with the Mk.I, apart from the styling.