Hollywood Sports is the first and only paintball park I've ever been to. There are no paintball fields in my town. My dad lives in Bellflower, and every time I visit him he borrows some of my gear and we mosey on down to Hollywood.
Safety: HSP is big on safety. This may seem excessive at first, but I think it's justified. There are "Goggles On" signs everywhere and they are strict about keeping you barrel plug in. Violation of either may possibly get you kicked out.
Fields: The killing grounds of HSP are impressive. I never play speedball, but the scenario fields all have their own themes. Lunar Wars is a hi-tech field featuring tents, metal and plastic bunkers, and a mock-up dropship in the center of the field. Forbidden City is Egyptian-themed and has props made accordingly. Mad Max World is built of junk and features a sniper tower, and Apocalypse is themed after a bombed-out (post-nuclear?) city with stone walls. The fields are adjacent to one another. For games with 100+ players, two fields are used. (It gets insane!!!)
Hours: The hours could be better. They open at noon on weekdays and close early on weekends.
Prices: Reasonable. $15 field entry, $38 case, $10 all-day air. Not bad.
Rules: Pretty standard, goggles on, barrel plugs in, don't shoot the ref, etc. All markers are chrono'd at 275 fps and are given a tag. No full-auto is allowed on the scenario fields.
Pro shop: Lacking. They need more inexpensive accesories. Last time I was there the clerk had no idea what a microfiber cloth was.
Staff / Refs: Nice people. The refs are usually pretty laid-back unless you break the rules intentionally. The staff is for the most part very helpful.
Players: A good crowd. I don't think I've ever seen anyone cheat there. Everyone I met was honest and didn't take the game too seriously. I like that, I mean it is just a game after all. I make new friends every time I go.
Food: HSP needs a snack bar. There are vending machines and a liquor store across the street, but no actual food-type food.
Overall, Hollywood is affordable, well-maintained, and worth your while. Go there for some crazy military-stlye shootouts.