Has anyone been to the new Harry Potter land at Universal, Florida?

I am going to Disney World in June with my 18-year-old granddaughter. We would really like to take one day to go to Universal Studios to see the Harry Potter thing. It is really expensive, will cost me about $400, and I have heard that it’s not all that. I heard scare stories about not being able to get near the shops without waiting in line for hours. Have any of you been there? Would you recommend it? Is it worth it?