Travel Guide:

Not all that fond of LA to be honest. The traffic is horrendous and the pollution is too. On a nice day it can be great but even to visit its incredibly hard to deal with.

LA provides the perfect demonstration of what happens when a population explodes in a region with little or no planning.  Based on how much water there is naturally in that area, there should be at most a community of 50,000, but LA has managed to siphon water from hundreds of miles away to create a city rich in all that is unnatural.  If you like endless traffic, a world where you spend more time driving than living, LA is a great place to visit. However, if you are the type that likes to be able to feel like you are living somewhat naturally, LA is a horrible place.

I agree with the first two reviews.  Although I've never visited LA with the express reason of being a tourist, from the snippets I've seen I've never been quite impressed.  It's cliche, I know, but everything just seems so fake and overrated.  I've talked to many a traveller who spent a couple days in LA and just wanted to get out -- it's overwhelmingly large without viable public transportation, it's dirty, and just not what it's cut out to be.  Idealized as the "it" place of California, LA disappoints.

Although I agree that Los Angeles is over populated and the traffic is awful, it is a fun city to visit.  I think the once you get out of the main part of Hollywood you can find a lot of things to do in Los Angeles.  For example you can find wine tasting not too far away or there's lots of great beaches in the area.