I honestly don't understand the appeal in slow-close toilet seats but my wife wanted one so...

For being so expensive I was surprised at how flimsy and poorly designed the seat was. Installation was quick and painless but even after being properly installed and tightened down there is still a noticeable side-to-side wiggle in the seat that makes you feel unstable sitting down. The hinge design is awful and will easily collect crud and will probably break with numerous attempts to clean out said crud. The slow-close is insanely slow--you could pretty much be back for a second use by the time the lid has closed from the first use. 

I would say stay away from this one and, if you need a slow-close due to males in the family slamming the lid late at night, I'd say go with something more sturdy and with logical, easy-to-clean hinges.