Well the only note of caution I'd make is to only update the BIOS if you need to i.e. fixes a problem or support a new cpu upgrade etc. In the past it was a DOS only job with boot floppy, not much effort really but enough to serve as a check.
My last ASUS board installed an update tool that included a Windows BIOS update utility. I've never really trusted them in the past but I weakened and used it a few times, it's a terrible convenience thing to have. The last time I used it, it happily downloaded the BIOS file and promptly failed towards the end of the write process (and no option to keep the boot block either).
Thankfully I was able to get a replacement chip from ASUS cheaply, however, not without getting my ears chewed off by a support technician. So I've learnt to be a little more cautious and that I doubt I'll ever trust a WIndows BIOS flash utility again.
Karl