The ION seems like a fine putter to me. I don't see the people knocking it for push putting. I suppose if you are lobbing it way in the air over the height of the basket, but then any stable putter that is going to fade of harder, but then again even my APX putters will fade hard with a lot of height and not as much momentum.
I was a little concerned that the plastic would be a little too slick to my liking's for grips, but it's 34, wet, and rain/drizzly out, so I am thinking that wouldn't be much of concern either as the grip seems fine.
For driving with an Ion, do people tend to prefer mediums over softs more or vice versa, or is that all personal preference?