It can be enough, but it REALLY depends on the surrounding property. Crappy neighbors can ruin it bad.
I bought 13 acres about 15 years ago, not for hunting, but to build on later.
It is mostly wooded. I gave hunting on it a shot and wow, saw more deer there than anywhere I've ever hunted. The first few years evening hunts were a no go because the neighbors loved to ride dirt bikes.
That has since stopped. The hunting is great, I just try and make very sensible shots because a wounded deer can be across the property line in a hurry, and the neighbors are a little strange.
Even through a couple seasons that there were several hunters close by, I still saw plenty of deer.