I tried the Patty Daddy today and was not impressed.
I got the triple cheeseburger (keep in mind they're 2oz patties, I'm not a fatass) with the loaded fries. The burger was fine. Nothing special, but not bad. Didn't really taste the "special sauce". The loaded fries (I didn't read the description on the menu prior to ordering) was just an order of fries with another patty, sauce, and cheese on top, which made them taste pretty much just like the burger. I thought that was strange.
$16 even for the combo after selecting the lowest non-custom tip option on the tablet.
I give it a solid "meh". Would go back if invited, wouldn't go out of my way to go there. The menu initially looked cheap, but after realizing a single 2oz burger wasn't gonna cut it, it wound up being a little on the higher end.