Never needed to file a claim, but I have had no issues with them at all for car insurance, and everything has gone smoothly.
I did call them about house insurance, and they don't directly offer homeowners' insurance, but they do affiliate with local carriers that do. The guy I called got my location and told me the insurer for my area. He then went through a bunch of questions to give me a quote. I asked him about a rider for firearms, and he started asking me how they were stored. It makes sense to ask whether they're in a safe, since that would make them less likely to be stolen, but he basically told me that unless all firearms were locked up and all ammo was locked up separately, that they would refuse to insure me. I have a couple of guns loaded for self-defense, and that was a big no-no. I guess they'd rather I was killed and my wife raped by a burglar than risk someone getting ahold of one of my guns and causing an accident. Screw them. Once I get around to it, I'm going to consolidate my car and homeowners' insurance with one company, and it ain't gonna be with Geico.