I've owned both, adf75 from may12 to august12 and sent it back to where I bought it. The same day august12 ordered the Texas Hunter fish feeder. On august 17 I set up the TH and so far it has worked exceptionally well. Not one pellet of food has fallen on the bank. Can you say that about the adf75, I couldn't.
If you take both feeders and stand them beside each other there is no comparison in quality. TH is superior hands down. No comparison what so ever. I would pay the extra 230.00 just for the superior quality. Shipping was a little more because SanAntonio is farther from me than Grand Prairie. That dollar amount is including the shipping as well.
The extra money is worth the peace of mind that it's going to work for me.
My experience would tell someone in the market for a good feeder to go with the TH.