concrete can be funny stuff. A lot depends on how the area was prepared for the concrete and how the actual pour was prepared and the mixture of concrete poured.
Preparation - There needs to be a good solid base to put the concrete on.It has to be dug down to solid ground. If it is poured on, say, topsoil, the natural decay of the topsoil will cause the soil to settle creating voids that will eventually cause cracks. After digging tosolid ground the area needs to be settled, or packed to make it hard. Then a good layer of crushes stone to provide drainage needs to be put down and then that has to be packed, so the stone does not settle and create voids.
Prepare the pour - There should be some kind of metal reinforcement laid inside the concrete. What you use will depend onhow much weight you will be putting onthe concrete. Just cars, pickup trucks heavier trucks? This all has to be taken into consideration. Fence wire is usually used in a hone driveway, if cost is not an object and you will be putting heavy vehicles on it, rebar would be a better choice.
The mixture of the concrete. There are all types of mixtures, additives and ratios. I am not up on all of them.The ratio is the amount of Portland cement to sand to stone. Foundations use a lot of stone for strength, sidewalks use more sand for a smooth finish and so forth in between. There are additives for hardness and the time that it takes to set the concrete. Also there are colorants that can be mixed n the pour to give a uniform color throughout the concrete.
The info above may be helpful, if you are going to dig up and start over. If that is not an option, in my opinion, Uncle Bob hit it on the head. Use a good crack filler and seal the driveway. If you choose to pour over top of the existing concrete, use a bonding agent to get good adhesion of the new and old concrete.
Finally, there are companies that do concrete stamping. They can pour a driveway and then follow along with rubber stamps to impart a pattern into the finished concrete. This can end up looking just like a paver stone driveway. Usually this process also involves coloring.
For my two cents, if you are up for rip and rebuild - go with pavers. It lasts a longtime and it can be fixed.
AC