amazing , comfy, it's actually warm (doesn't get cold lol)
I checked mine but I don't see any way to make adjustments. You could check YouTube or take it back if you bought it under a week or so or call the manufacturer. Hopefully they send you a replacement seat.
Fits all. Must know if elongated or shirt.
It is plastic. Wood is a porous material and can build stains if the paint wears off.
Not in store but at Homedepot.com they will have more variety.
Is easy to install and looking good