I was dissapointed upon unpacking it as its actually made from foam, having said this it does have its own merits, its lightweight, easy to cut, easy to fix using gripfill - I used the solvent free stuff in yellow tubes, which i can highly reccomend, you can wipe off any excess with a damp sponge unlike the stuff in the green tubes.
When the dado is fixed it actually looks quite good & any joints can easily be disguised by filling in, & lightly rubbing down.
My mine gripe with this dado rail is the price & the qty it comes in. I was actually 1.5 mtrs short of finishing my hallway, a number of external mitres & internal corners didnt help. having to buy another box of 12 mtrs is rather annoying at just under 40 quid a go!
Screwfix should sell larger packs to start with (an average size room these days being anywhere between 16 mtrs to 20 mtrs or more, it should come in boxes of 12 (24mtrs)which would be more realistic for most peoples needs & the price could do with being a little lower.
Having said the above im pleased with the look of the dado & would use it again if I had to."