I have had my X3 set for about 3 years. I have had no issues with warranty claims. The big thing is you need to register everything right away. Including when you get replacement tools. I have replaced my batteries 3 times and replaced my portable light twice. The batteries are weak compared to others and a bit heavy. The hammer drill, impact, sawzall and circular saw are pretty good. I find Ridgid cordless tools are middle of the road. Its the lifetime warranty that sets it apart from others.
I am a service tech so I rarely use my power tools. Back when I was on installs I preferred Milwaukee and Makita. I believe Milwaukee has a 5 year warranty excluding batteries. Makita replacement parts are cheap. All other brands seem to have a much larger selection of other tools and accessories. I hope this helps.