With the DIY PEX, you do not have to do any soldering. This is because soldering is used only when there is a turn and fitting that you should fix. The flexibility feature of the DIY PEX allows to be turned without the use of any fittings most of the times. Thus, the time involved in the installation is very less. While you do not use much of the fittings, you can also expect to have fewer leakages.