My opinion is it is ok for what it is. It is an entry level device to get people into the apple ecosystem at less cost. The form factor is great! That wasn't enough for me to keep it though because the screen is bad. When it gets a better display I will purchase another. A tablet should be all about the viewing experience and the mini doesn't produce in the most important aspect.
If this is entry level to get into Apple ecosystem at a pretty good price, I done good.
But regardless, you cannot discount folks selling their higher quality iPads for the Mini.