To be able to walk through Hobbiton and see the actual thing in reallife is just amazing.
Even though it's not the original Setup from the Triologie of Lord of the Rings, it's absolutely worth it.

There are multiple different packages you can book and I highly recommend booking your tour as soon as possible. Especially the evening dinner and special Tours are in high demand. They might be expensive, but they are worth it.
I tried the following three different packages:
1. Normal Movie Set Tour
2. Movie Set Tour + Lunch
3. Evening Banquet Tour

I would recommend the Evening Banquet Tour, it's absolutely worth the money. It's a special feeling to walk through Hobbiton in the evening with some candles and to eat a nice buffet in the Green Dragon. But be careful with the beer, you will have to drive quite a distance after the tour is over, cause there is no overnight parking close by.