LA is a great tourist town. Weathers wonderful, sites are worth seeing: That said it is not real RV friendly. Getting a beach side RV site during the summer is problematic at best, impossible most of the time, and if you are planning on an ocean parking place you better have a back-up plan. Some private parks that take reservations to consider are: Ventura RV Park (30 to 45 minutes from the LA center area), Malibu RV (much closer but also more expensive) Travel town RV and Castaic RV (both inland 30 to 45 minutes from Hollywood area, actually close to Magic Mountain). As for driving: If your not comfortable driving a BIG vehicle in really heavy city traffic you will hate driving in LA. I don't know what traffic in Tel Aviv is like, but I bet LA traffic is denser. Major attractions have RV parking (Universal Studio, Disneyland, Knott's Berry Farm) City tourist spots like Hollywood, Hollywood & Vine, The Grove, do not have RV parking and area parking in non-existent. Plan on renting a car, signing up for tours (like Grey Line Tours, or Hollywood Tours) or use rapid transit. LA rapid transit is 3rd world compared to Eastern and European cities. Clean fuel efficient buses and trains will get you most places in a very long time, with infrequent pickups and anything but all inclusive routes. But car rental is reasonable compared with rental in many other cities, so it is worth looking into.
Enjoy your visit, and Happy Trails.