The nice thing about that Mike's is you can see exactly where you are in relation to nearby satellites and base stations. And get a pretty good guess as to where your packets are going to go. It is all guesswork - SpaceX only shares what they are required to by the FCC. But it's been pretty accurate in the way I can test it.
(Also try clicking the little ringed planet icon in upper right to get an orbital chart.)
In the early days there would only be 1 or 2 satellites in range of my house sometimes and I could feel the lag as the dish switched. Back then it only switched every 15 seconds whether a tree was about to block the view or not. Now there's regularly 10+ satellites to choose from and a smarter algorithm for switching to maintain signal. There's still significant problems compared to a wired connection or even fixed wireless but Starlink has definitely been a big improvement for my life.