This district is completely crowded during the day so if you can deal with it go ahead and visit. There are some places to eat Chinese food which are good but always have a look around if they're clean and if there are other guests eating.
There are plenty things to do in San Bernardino county and in San Bernardino the city itself for Route 66 however beware that LA County has 5000 people per square mile and most of them are on the road in their cars traffic is horrible everywhere