I know a consultant who has gone over to the new system for her three groups. There is a lot of work for the consultant to do before the system goes "live", so to speak.
First of all, she has to get used to the equipment, which is complicated. Like all these things, fine when you have got the hang of it, but a bit daunting when it all comes out of the box and there are cables everywhere!
Then she has to learn how to use the system (there are training sessions for this), then transfer all the members' records onto the new laptop computer, then make a card for each member. Not too complicated, but fiddly and time-consuming, and requiring absolute accuracy.
Then the payments and weighing people have to be trained - again, it is not difficult but people can find it daunting to start with.
Once the system is up and running, most consultants think it is wonderful, especially as the hours of paperwork they have to do after each class (which we, the members, know nothing about!) is a thing of the past - all the information is uploaded to HQ in a matter of minutes.