I was not happy with my CJM struts. That pop rivet thing leads to an awful lot of slop. On the other hand, they were very good about making up custom work and getting the specs right and working with me in that respect.
The retracts themselves are fine. I have not used any of their fill valves and air switches.
I do have four of their digital gauges. You should have gotten an instruction sheet with them that told about how the nipple needs to be sealed around the base with CA to prevent leaks before installation. They are (obviously) an industrial part, and not made for the stresses we put on them. I also don't like that they read in bars instead of PSI. If anybody wants to trade for some sierra analogue gauges, let me know...
Don't confuse their retracts with their new kits, which are really nice.