We absolutely love our dado rail which we installed at picture rail height. Also got panelling rectangles. Had lots of comments.
Product arrived quickly. It is uncut which meant lots of working out how to do angles. A precut version would be fabulous. The product is solid, we used no more nails and small racks whilst it glued then removed the tacks. Took coats of paint, the second coat really finished them off. Would recommend. Check none are warped before installing however your walls could be out too.