Ya, I've been running the 1.14 that came on it and have never had any issues. I've never had the router hang or become un responsive. its currently been running for 51 days but have had it running quite a bit longer. As solid as the unit "seems" to be, from reading about so many others having serious problems, I can't help but wonder that if I flash a newer FW, i'll end up with a useless piece of plastic.
Its a very sad trend as of late, and i'm referring to a wide variety of devices, where it seems like updating FW has gone from something that was fun ( almost always worked and you got new features or at least fixes ) to a close your eyes, cross your fingers, possibly sacrifice a chicken and hope things don't get any worse that it was before the update. I suppose thats the nature of the beat as devices get more and more complicated. But I hate being afraid to update. Just out of principle I feel i should update to the latest. But I don't feel like having to blow a bunch of cash on a new router right now if things go bad.
Again, I would point out that the "if it aint broke don't fix it" mantra, if the FW updates include security fixes, then indeed, it is broke and should be fixed. just because you haven't actually had a problem with someone attacking it yet, its not a good idea to leave yourself open to an attack. But you also shouldn't have to be afraid to apply said security fix.