I purchased a taller spout, and a few other items for my dish master faucet, and also had a few questions they answered right away. I love their customer service, and highly recommend their products!
The parts that came were great. The faucet I purchased more problematic. Out of the box the faceplate was peeling from the bottom. And installed, properly with tape and dope where applicable, it leaks (drips) from the hose attachment area. I like the design, and the parts seem made OK, but two issues straight from the box merits a 3, average.
We recently upgraded our Dishmaster Imperial faucet by adding the 4" higher spout and retro faceplate. We love them both. The faceplate gives it a nice look and the higher spout makes rinsing dishes much easier. Both are a great upgrade if you have a standard faucet.