[taudelta]

I would argue that yes, debian unstable and arch are both rolling release distros, so the experience will be sort of similar, but I think that's where the similarities end.

Arch on one hand has a large user base (everyone) using the rolling release packages, this means that bugs get quickly found and squashed. There is also a testing repository which is used for the "base packages" so major bugs don't get get past into the "stable" repos. For example, kernel 3.1 is still in testing because of some problems that the testers experienced.

On the other hand, debian unstable has bitten me more than once very hard. So from my experience, it feels like debian does very little if any Q&A on debian unstable. I would compare Arch to Debian testing more since by then, packages have had some time to test and mature.

That said, I've experienced less crashs on arch than on any distro. Mind you I actually read the news. I honestly can't even remember the last time I've had a crash on archlinux.. maybe several years ago with some kernel update.