We have always been pleased with Delta product. We have 2 of their touch activated faucets and absolutely love them.  This valve however not so much.  We installed this shower valve quite a while ago.  2 weeks after using it, we had to start wiggling the handle at the set point to get the right temperature.  We have put up with it for quite a while but it has become a constant frustration every time we shower.  I am just about to install a similar valve in a new shower, but with separate controls for temperature and pressure.  I hoping it performs better.