Product review (5 stars): Easy to Work With Sturdy 1/4-inch OD Pre-terminated Extension Tube
PEX is noticeably sturdier than CPVC, and the pre-installed compression (1/4") connectors work well (though if you do have to trim an end to send it through a wall or floor, you will need to supply a compression ferrule to re-use the compression nut. PEX also works well with JG press-fit 1/4" connectors (added a shut-off valve, and have it connected to a 3/8" primary supply from my filtration system.)
As noted elsewhere, the non-suitable installation cases for PEX are exposure to sunlight (it degrades under UV exposure, don't use for outdoor unprotected connections), and it's not fire/flame-proof (use copper instead.) It does hold up well against acidic water sources.