Basically, Speedzone is only a really expensive arcade. Inside, most of the video games are very high tech and very pricey. Outside in the back, they have go cart racing and mini golf, at higher prices than you would expect in this area.
Nothing really is spectactular about this place; it just provides a good hangout spot for people who do not have their license yet. (There are lots of teens mulling around.) Located off the 60 freeway, it is free admission and free parking. However, the prices of the go carts, mini golf, and arcades make it so it's not worth the visit there.