we just got one this past spring 12-24. Works well but don't think we will like the martin closing wheels. They do ok but you have to really watch them when planting shallow. Run them to hard or plant to shallow and they will throw the beans up on top. The other problem and one that is a bigger concern is rocks, not the big ones but the ones that are fist size. The closing wheels leave them on the surface. Need to be rolled after planting, we rolled before and now will have to roll again when they are up. Next year will roll after planting. May have to do something about the closers. Maybe run one spike and one regular.
 Once you get it set right it does a nice job, also need to be careful if your using markers. Middle row may take some fine tuning planting into the mark.