Like others said, the Tradesman is the bottom of the line truck, but you can order it with options and have it almost be an SLT if you want. I have a Tradesman with a few options, but I don't need all the fancy stuff. Only regrets that I have with my Tradesman are I have the cheapest radio (I can change it out aftermarket, but it would have been nice to have a slightly upgraded factory radio with steering wheel controls, etc.) and the manual seats don't offer lumbar support (I just have a rolled up towel behind my lower back for longer rides, works the same!)
Other than that, its a pretty basic truck by 2015 standards. I have keyless entry, AC, cruise control, Cummins(!!!), chrome bumpers, power windows and mirrors... what else do I need?