I had the choice between a
Tascam Neo and
Korg D3200 in the same shop when I bought mine.
I went for the Korg, mostly for the preamps but also for the features.
Neither is easy to learn. Just like any DAW in that respect but the Korg is a step up from the Tascam.
A couple of things you should know but many don't.
The Korg D3200 will also work as a surface controller with Cubase and any other DAW which boasts a "Generic" setting for remote controls. Someone who owns Tascam Neo can confirm whether or not that machine does this.
The second point is that the only consistent complaint regarding the Korg has been the small screen. Too small for those of us who are 50 and older. That problem has been solved by the recent invention of the 2seemykorg. A small gizmo which allows your machine to hook up to a VGA screen. Costs about $200 and is an option you may want to look at down the road.
In short... The Tascam Neo is a very high end home recording unit which is about one half step from being a Professional Recording Studio.
The Korg D3200 is a Professional Recording Studio.