Whtail- i have not used one of these, however, i have discussed this implement with other members of our 'local Bow Club'. i am leary of an implement that says it can till and plant in 1 pass that is pulled behind an atv, thus saving time. i dont think you can get the soil worked up like you would want in 1 pass. Farmers have been using minimum tillage equipment for years, however they are much heavier and geared towards crops such as corn and beans. i do like the ability to 'drill' the seed at specific depths - this works well for crops like corn and soybeans. For many other 'food plot' crops (clover - brassicas) I have found it works much better to till the soil well (after spraying with Roundup) fertilize per soil sample recomendations, and broadcast the seed. For smaller areas I have a hand held broadcast spreader, for large areas I have a spreader attached to my atv.
To till the soil I use a small disk that is pulled behind an atv. I purchased this disk for about $850 several years ago. It is very well made with adjustable angles on the disk. Depending on the type of soil, it generally takes many passes before the soil is worked up sufficiently. After it is tilled, I have a 4' drag I then pull to level the area to make a nice seed bed.
for the corn and bean plots I bought an old 4 row John Deere corn planter. It has adjustable plates so I can also plant beans with it. I never had any great luck with broadcast spreading corn and beans.