How is biking in LA?

I'm curious, how is biking in LA? I've heard that the city has made some efforts to improve cycling infrastructure, but I'm not sure how practical it really is. Do you find that it's easy to navigate the city by bike? Are there many dedicated bike lanes, or do you often have to share the road with cars? Are there any specific areas or routes that are particularly bike-friendly? And finally, do you think biking in LA is a feasible mode of transportation for daily commuting, or is it more of a recreational activity?