We were in CBR last week. Most days were okay, but some the skyliner was painfully slow. Many stops and starts. It seemed to impact different lines on different days, so not sure what exactly was going on.
On our Epcot day it took us 50 minutes to get to the park (including waiting to get on) and 70 minutes to get back. The wait in line was bad enough, but being on a skyliner as it slowly crawls along and stops and starts repeatedly is pretty miserable. I don't know why they didn't run busses instead when it was that bad.
Two days later the HS line was down in the morning, they were running buses.
This was my first experience with the skyliner. It was nice when it was working well, but the unpredictability was very frustrating. We definitely preferred the buses.