We were there 2 weeks ago. Most FP kiosk areas had a Cast Member assigned to every terminal, and some kiosk areas had extra CM with tablets. At the start of the trip, I must have looked confused, they would ask me what I wanted, and completely do everything for me. By the end of the week, CM could tell I didn't need help because I would go right up and start booking it myself.
The kiosks themselves weren't difficult to use, some people are just clueless. We saw one lady at MK consulting a park map at the kiosk, maybe it was her first time to Disney World, she had no idea what the rides were, or where they were, instead of figuring that out beforehand, she waited until she got to the kiosk, and it took her forever to pick what FP she wanted. The other thing that would slow things down is when you select one ride and the first return time is 3 hours away, so you check another ride, and that's 2 hours away, and then you need to pull out your phone and call someone and have a long discussion about which one to get. You only need one person at the kiosk to make FP for whole group, but I'd always try to bring at least one other person with me just in case we couldn't get our first choice.
The FP CMs I talked to were all very helpful and knew what they were talking about. We had a large group, and on one occasion we were trying to get a 4th FP despite some people never using their 3rd FP and other people holding open-ended FP because a ride was down, it couldn't be done all at once. CM took over and got it all straightened out.