I like the accurate seed placement and the ability to set the depth and not stress about soft soil and firm patches in the same field. They follow the contour about as good as you’ll get in my opinion. For canola being in a tight row it’s easier to find the seed to assess depth. With bean I can easily blank every other row to give 15 inch rows. This does help if the soil crusts as there are more beans to lift the crust up. In cereals I wouldn’t want 10 inch rows. I think you loose yield in this area. I’m on 7 1/2 inch and that seems ok. In my soils that are generally wetter,spoked depth wheels are a must. Closing of the row on my jd is adequate in normal conditions but in higher moisture situations a knotched closing wheel works better. Maintaining them however is not the nicest of jobs. Lots of wear point that need watching as the acres start creeping up. I’ve had mine four years and rebuilt it before I used it. Have over ten thousand acres on it now and the discs are still sharp and bushings are pretty tight. Only thing I’ve had issues with was the closing wheel arm bushing would seize with dust. So I greased them and made it worse. This year I added grease seals the same as newer drill and never a problem now. I’d buy a Deere again as there are lots of aftermarket upgrades available at a fraction of the cost from Deere. Can’t comment on other brands but Deere our number all the other put together so that says it all.