Why not wait till it really needs some work. What you have should hold up for more than a few years.
It's a muddy mess. It's a good base and doesn't rut, but the top 1" has been soup all winter since we are getting lots of rain and only top layer freeze/thawing (it's been very mild this winter). Our cars are a mess and so are our kids getting in and out. Would like to control a little of that if possible.