JKB, I have one just like it. I have had it for about 4 years. It works great and I couldn't do without it. My garden is 5000 sq ft with an 8 ft dear repellant fence. If the soil is somewhat hard, I would never get a tiller without the reverse tine fucntion. If the ground is hard and you put it in forward tine function, you had better have on you track shoes. I got mine at Tractor Supply .
I am pretty sure I am going with it. Cash is secure in my wallet right now.
One thing that is a real PITA working an area that has been a forest all it's life is the underground roots and pieces of trees that have been buried over the years. That initial 40x40 garden took some work! I have ripped out a lot of other stuff since then, just that the soil has not been amended yet.
The city of Fremont, MI sells leaf compost that is 3-4 year aged for 6 bucks per yard. It would be nice to get a couple dump truck loads, but not sure how many would want to try squeak around the curve to get back to the garden area. One guy did when he hauled in some gravel for me, but he was pretty wasted at the time and had no plates on the 20yd dump truck. I was just waiting for one of his tires to blow going over those stumps, but he made it. Sad thing tho, is his son found him at his house after he was dead for three days due to alcohol poisoning.
I'll be putting in a new driveway that goes straight back. Ever try snow plow a drive that has curves and corners in it, especially if you get dumped on. It takes some time!