We have had our Starlink for RV system for about one week. We mounted the dish on a pole from flag pole buddy.
https://flagpolebuddy.com They even have a Starlink adaptor. So far the performance is way better then campground wifi. It does slow down some in the evening hours and will occasionally buffer YouTube TV for a few seconds. But it isn't bad. We feel like it was a great upgrade. And as more satellites gets launched it will get better. I just ran a speed test and it is 69.3 download and 4.6 upload. Sometimes it is over 100 download. Hope this helps.