I've had this truck for over a year now. Bought with 147k, now has 152k. It has been reliable. Always starts (so far!). 4x4 is pretty impressive, with good tires this truck will go most anywhere. Handling is horrible, tippy and does not stop very quickly. It is a 4x4 truck though. Fuel economy is not very good, 16-24 mpg is what I've been getting. Decent low end torque for 4 cyl but no guts on the freeway, and mtns make me search for gears. Dunno about the new Frontier, but for the price, a used Nissan pu/frontier is a good package. Consider the V6 though, more power and I don't think the fuel economy is much worse. 4 cyl is not for towing heavy stuff.
Reliable, 4x4, good field of vision (Tacomas and Rangers feel a bit like a dark cave inside in comparison), simple to work on, cheap, looks like a truck "should" i.e. basic and solid, metal bumpers in the city are nice after having a little car that was dinged several times
Jump seats in extended cab are nearly useless for adults, handling is not great, braking is poor, some interior parts are cheap, rear quarter panel window latch snapped in a strong prairie wind, very very stiff bumpy ride, more than other similar Japanese trucks