Installing a car set isn't the easiest thing in the world, but this one is particularly difficult to install, especially using the UAS system.
I own two cars, a 2008 Mazda 3 and a 1997 Jeep Grand Cherokee, and I have a My Ride 65 in each of the vehicles. Installation in the Jeep was easy, because it doesn't have UAS. Just pull the seatbelt through, lock it, and you're done. It's quite a bit more complicated using the UAS system.
I found that trying to tighten the straps was difficult. In order for it to be properly tightened, it needs to be pulled at a specific angel, otherwise the strap bunches and you can't move it at all. Unfortunately, the angel at which you need to pull it is into the car seat itself. It's extremely awkward, and after about 20 minutes you can get it tight enough.
The car sear is also very large. I have them installed in the rear-facing configuration, and in both my cars the front passenger seat has to be pulled forward almost all the way for the seat to fit properly.
All around, it's a good car seat, but you'll definitely need patience for the install, and preferably a very short passenger.