They specialize in small farm supplies. They do have small-tractor, lawn equipment, and trailers parts, and a good selection of hardware. They carry pet food, horse supplies, salt licks, bedding, and that kind of thing. They also have a decent selection of workwear (i.e. Carhartt, and boots (i.e. Wolverine).
Their tool selection used to be pretty terrible, but they have added some good brands, with Mayhew being a newer addition. They have a lot of Apex/Crescent tools, but I have seen a decent selection of Channellock tools.
Their store brand is JobSmart, which is sometimes pretty poor, but sometimes descent (depending on the supplier). The deals on these can be too good to pass up. I got a set of long Ball-Allen keys (Inch and Metric) for $6, a set of offset box end wrenches (SAE and Metric) for $14, and some diamond tipped screwdrivers (standard & Phillips) that are made in Taiwan for $11. Not the best quality by any stretch, but not the worst I've seen either.
They have a decent selection of power tools. Porter-Cable is going to be their exclusive power tool brand soon, but they also carry DeWalt, and a couple of other brands. I think they are trying to reposition themselves as more of a hardware/DIY store that has farm stuff.