How stable is the Atheros AR9344 support?

[Lloyd Parkes <lloyd%must-have-coffee.gen.nz@localhost>]

Hi all,
I'm looking at replacing my NetBSD based home router with a MikroTik 
RB2011UAS-2HnD because I need more throughput and the routerboards are cheap. 
I'm sure the included RouterOS works fine, but I wouldn't mind running NetBSD 
instead. I realise that NetBSD hasn't been ported to RB2011 devices, but they 
are cheap enough that I'm willing to buy one to tinker with. 

So, how stable is the Atheros AR9344 support? 

Cheers,
Lloyd