Physical retreat worth it?

I just recently started practicing the first wave of the gateway experience. I am a complete beginner, n only have been practicing for a few days. Looking at this sub I’ve seen that physical retreats are available, which deeply interest me. I’ve always wanted to do a type of meditation retreat, n this looks like something even better then just a regular meditation retreat. What are your guys experiences with the physical retreats?

How much experience did you guys have before going through with it? What does a day in the retreat seem like? What do you guys eat? How often do you guys meditate, etc?