In response to the original questions, you should definitely get the training with the console. If you have logged hours on the Ion or other Eos family consoles, then it may be less necessary, but if you hvaen't or if you have other potential users who haven't, then you will want it.
The Eos platform is very different from Express(ion), the biggest change will be moving from a cue-only/preset desk to a tracking desk. Once you wrap your head around it, you will never want to go back, but the switch is big. So make sure that you study up on tracking and how it works. Watch the videos that have been referenced in this thread, and your console will probably come with a tutorial DVD that may be handy. If you learn better by doing, then just make sure you get adequate time in front of the console when you get it and ask the trainer as many questions as you can think of. Most of the trainers are happy to answer question after they leave as well either by phone, text, or email.
As far as displays go, I am a Gio driver and I have three touch screens. I think it is totally worth it, but we own a handful of moving lights and other devices. On Ion I could see wanting one or two as it will save some navigation of menus and softkey layers. Of course if you use MLs and other devices frequently, then having quick access to things like direct selects may be useful. Totally a personal preference thing.
As far as ease of use for other people like choir directors, Ion is very configurable. You can create the looks that people need and put them on faders. You could set up a page of faders that are choir looks, a page for band looks, and so on. You can make it simple to operate for whoever needs to use it. I am sure you can find a setup that works for you and is easy for others to understand.
The Eos platform is very different from Express(ion), the biggest change will be moving from a cue-only/preset desk to a tracking desk. Once you wrap your head around it, you will never want to go back, but the switch is big. So make sure that you study up on tracking and how it works. Watch the videos that have been referenced in this thread, and your console will probably come with a tutorial DVD that may be handy. If you learn better by doing, then just make sure you get adequate time in front of the console when you get it and ask the trainer as many questions as you can think of. Most of the trainers are happy to answer question after they leave as well either by phone, text, or email.
As far as displays go, I am a Gio driver and I have three touch screens. I think it is totally worth it, but we own a handful of moving lights and other devices. On Ion I could see wanting one or two as it will save some navigation of menus and softkey layers. Of course if you use MLs and other devices frequently, then having quick access to things like direct selects may be useful. Totally a personal preference thing.
As far as ease of use for other people like choir directors, Ion is very configurable. You can create the looks that people need and put them on faders. You could set up a page of faders that are choir looks, a page for band looks, and so on. You can make it simple to operate for whoever needs to use it. I am sure you can find a setup that works for you and is easy for others to understand.