I'd like to amend one point in my comments above: I said that the OP was imprecise in his description of the sound of the UNI Optimum. I'm not sure that's true. I was trying to address @lewm's criticism but I was being a bit sloppy. On second look I think @audiotomb is perfectly clear and I don't see where he's any less precise than a typical magazine review. Also his plentiful references to specific recordings are helpful. I put Steely Dan's Aja on after reading the OP's review and I also found that I heard new details - the bass lines for instance became much more 'musical'. That's a welcome change with that LP in particular. it's one of the most emotionally fraught and saturated albums I can think of (just for me personally) so it's nice to hear it with 'new ears' so to speak.
@chakster I see your point and personally I would love to sample older MM carts from the so-called "golden age" but I've found that my efforts haven't been too fruitful (haven't seen the magic yet). The carts that interest me - a Grace Level II for instance - are pretty old at this point. its like a car. air cooled porsches are wonderful and superior in some respects to a more modern car (tank like build quality; seat of the pants thrill). but they're old and you need to know a thing or two (or spend a bunch of money) to get them fully "sorted." On the other hand you can buy an artisanal car that takes the best of vintage technology and mates it with modern design and materials, like the Singer Porsche. But of course you'll have to pay a lot for the service. I would love to drive a Singer 911 but it's out of my range.