Not having to plan my life around traffic patterns is the biggest advantage for me.

I enjoy working in the office at my current place of employment... nice office space, small company, everyone who works there is great and the office is only 15 minutes away if there is no traffic.

But I live in Southern California, so when there is traffic that 15 minute commute balloons to 45-60 minutes.

So I work from home most of the time. I still go in a couple of times a week (voluntarily, not required) but there are no expectations of a set schedule so it is very easy for me to avoid heavy traffic commute times.