I liked experiencing the work environment that I hope to have one day. It was a really amazing experience to learn about grant writing and how it is done.
What I wish was different
I wish I had a salary and that I could have stayed longer to get more experience.
My advice would be to go all in and commit to being there and learning as much as you can. Especially if you aren't getting paid then you are there to learn and really strengthen your skillset and network. Do that!