When my brother and sister took me there in the 90s the service was good.
We didn't have to wait long for our drinks.
I remember it was ideal having a bar to sit at on the beach front as it was around July - August time.
To get to Miami Beach from Dade County the toll system was in operation which was a dollar in the 90s.
The beach itself was clean and very clear. As it was during a weekday it was fairly empty so we had the beach to ourselves (almost) and there was an outside shower nearby.