It is the base model 80% non-condensing furnace for Carrier. No bells and whistles with the STA. The DLA (deluxe) single stage will provide a few more options. But if this is your house and you can afford the extra $$$, I'd try going for the the 58CTA (two-stage furnace) or the 58CVA (two-stage & variable speed).
Also, I installed a 58CVA in my house a couple years ago and love it. I have had no problems whatsoever. The variable speed blower (vs a PSC motor) will cut electricity costs a little bit if you run continuous fan and is quieter during operation.