I use both DJI Go and Litchi. I'd recommend learning how to fly using Go, then when you're comfortable, add Litchi.
Be very careful flying around South Beach. You're not allowed to fly over crowds of people, and you're just outside the inner class B airspace of Miami... If you enter Class B accidentally you could find out if your new drone floats...
I also strongly recommend that you use only OEM batteries in your P3S. Keep an eye out for sales on Amazon, Best Buy, Target, etc.
Be very careful flying around South Beach. You're not allowed to fly over crowds of people, and you're just outside the inner class B airspace of Miami... If you enter Class B accidentally you could find out if your new drone floats...
I also strongly recommend that you use only OEM batteries in your P3S. Keep an eye out for sales on Amazon, Best Buy, Target, etc.