I bought a Toto soft close for my American Standard Cadet 3. I like it but my wife prefers the more traditional finishes of an ordinary toilet seat.
I think the shape is nice. I am a big man, but the tight curvature of the seat reduces any spillage that might occur when a man or woman urinates sitting down (drips under the seat if you've ever had that). It also seems to stain less easilly than many toilet seats I have tried. The mechanism is nice and fittings good (if you're going to bust plastic bolts, you will have more than a seat to worry about).
It really depends how much a fan of conventional toilet seats you are. If you are willing to sacrifice some looks, for great functional features then the softclose is for you. The price isn't bad either.