It is coarser than bluegrass and bluegrass-ryegrass blends, but it has many advantages over them. The roots are deeper, so it needs less water. It gets by on less fertilizer too. It tolerates shade much better than bluegrass. It does not become thin and patchy in shady areas in the winter.
Tall fescue grows quite thickly and keeps most weeds out without chemicals.
The only disadvantage to tall fescue is that it is a clump grass. Dead spots do not fill in as they do with bluegrass, ryegrass and Bermuda grass. You will need to reseed dead spots if they occur. Mowing correctly is the first step to a healthy lawn. The rules are simple.