Is QGIS a Drop-in Replacement for ArcView?

I’m kind of thinking that has become the case after reading this from a MapInfo user:

The worst part about the rule based rendering [in QGIS] is that I have gotten so used to their power that I feel crippled when I go back to MapInfo and try to do styling :)
Yea, cartography has been the one area people still say ArcGIS is king. Times, they be a changing though…

He’s looking at it from a MacInfo user perspective, but you could look at it as a proprietary GIS perspective.

Esri Vertigo

Is ArcView use about to fall off the ledge?