I bought a Plotmaster 2 years ago and it is AWESOME. I have the 4 foot electric model. It is a very rugged piece of equipment and I really put it to the test on my property and I can't imagine those "other" devises being able to do what I needed to do. The electric up and down is a very nice feature. The plotmaster weighs around 600 pounds, which is what you need if you are plowing unbroken ground. I would suggest using an ATV of 600cc or greater, as the unit bogs down if you are plowing deep. I have a 500cc and it does very good for 90% of the time. The other 10% I wish I had a 700cc. If you decide you want to get one, let me know and I'll hook you up with the right guy and the right price. I have absolutly no connection with the company or any other parties associated with them. Hope this is helpful.