We installed about 1.5 years ago and love it. We did the in-motion antenna on roof, cost more, but its great for daughter to watch tv on the road. 99 percent of campsites we have had signal unless a heavy band of trees covering the front of motorhome and blocks signal, we have been surprised how small of an area clear to the sky it needs to still get a signal.
Cost was 2500.00 for antenna kit that has everything you need and service is 150.00 for roam service. You are not guaranteed any speed but we have always had enough bandwidth to stream TV. The only hiccup we had was our dish antenna was up front also, and the Starlink antenna does interfere with DISH signal, so moved Dish antenna to rear of motorhome and fixed that, and then cancelled DISH since Starlink did so well.