I have a set of AKG K518 can style headphones. I bought them online and they give excellent sound for the price, however for me they are pretty uncomfortable. I can't wear them for more than an hour or two. I typically just use my $30 earbuds. If I invested in a pair of headphones again next timeI would definitely try them out first.
However regarding AKG it's an old brand and they make quality stuff might be worth looking into their other models.
I 'liberated' a pair of these from an old job and assumed they'd be shit.
But they're great - never knew they were so cheap as the quality is pretty solid!
AKG sound quality is great, but watch out for noise bleed. I recommended them to a work colleague, after reading a glowing review, but if he wore them at work it was as if he was listening on speakers...