Several reviews on here complain about the light weight construction of this seeder but I have no problems with it.  It is built of light weight aluminum and plastis but I am sure it will last me a lifetime.  If your soil is freshly tilled and raked smooth you will have no problems.  I planted 4 30 foot rows of corn, 2 30 foot rows of carrots, and 1 30 foot row of bush beans in about 15 minutes.