I have a Smarty that is really good. Gauges are a must to me (EGT, Boost, FP, transmission temp if auto. ) You might want to list your truck in the signature so easier to advise you specifically. Got it on ebay for $585 and free shipping.
The programmer add lots of hp/tq, so recommend programming no more the 60 or 90 hp to save your transmission. If you want more, upgrade the transmission first.
Hope this helps. Thanks for serving and be safe!
Wiredawg