Yes... just avoid the cheaper fittings and buy the right tool for the pex you are using.. I have plenty of copper pipe and fittings to do several houses in stock. But when I work on my own house I use my PEX fittings. With pex you use less fittings so the actual flow rate to the end fixtures is greater not the same. Running 3/4 then branching to 1/2" is the old way needed using copper. With PEX I run separate 1/2" runs to each fixture from a central manifold. This allows one easy place to find every shut off valve and only one angled fitting at the very end of the run.is pex really good?