As someone who has actually lived in other places other than LA, I have to say that LA has some of the cleanest public buses of any major metro area I've been to. Try riding the buses in Baltimore and then tell me that the LA buses "smell"

Take the 704. There's nothing wrong with it. I've made the journey countless times and never had a problem. Yes it can take a while, but it's either wait on the bus, or waste away precious gas while sitting in traffic (not to mention paying for parking, etc.) People on this forum (and city-data in general) tend to over-exaggerate a lot, so take everything you read on here with a grain of salt.