Los Angeles' Chinatown can't quite compare with the wonders of SF or NYC, but it's quite big and extremely scenic. Every building on the main drag is pagodaed out, or has murals, or something. The entrance gate is relatively subdued, with two slender, writhing, gold dragons on a metal arch. No big lions or loud colors, no Chinese characters even.
Sometimes it is rather hard to keep yourself fed on a busy trip, when you're running around and have a budget, eschew chains, and have some faint sense of dietary health. I got takeout dim sum, a pile of little steamed dumplings and a bbq pork bun, and ate it bit by bit all afternoon. Of course, it left me slightly vegetable-less, unless you count the bits in the pork dumplings.
Chinatown was full of bakeries, restaurants, groceries, etc. I didn't go up to the library or cultural center, so it was a quick tour, but a fun one. As my friend observed when I took her to Boston's Chinatown, "Now I can say for sure that Chicago's Chinatown is really dead."