Funny anecdote: when I was working on the Ultimaker S5 touch screen interface, there were lots of tests done with new users. Many people had trouble figuring out that the previous version did not have a touch screen but a tiny, tiny OLED display that was controlled by a rotating button. People poking their finger at this tiny OLED which was not giving a damn about what they did there. Really funny to look at, but made it very clear customers expected us to have a touch screen.
That allowed for a much nicer interface (we won some award with it), but the only thing that was not better with a touchscreen (IMO) was manual bed leveling, where you look at the print head and not the screen. We did our best on that and to make it as unneeded as possible. I don't have a such an S5 3D-printer and I don't work for Ultimaker anymore, so I'd be glad if anyone here could tell me how they like the bed leveling UI, if they ever used it :-)
That allowed for a much nicer interface (we won some award with it), but the only thing that was not better with a touchscreen (IMO) was manual bed leveling, where you look at the print head and not the screen. We did our best on that and to make it as unneeded as possible. I don't have a such an S5 3D-printer and I don't work for Ultimaker anymore, so I'd be glad if anyone here could tell me how they like the bed leveling UI, if they ever used it :-)