I'm running an MTX8 on my supra. I personally reccomend them. Cheaper thatn the others i think around $1095 and they are laptop programmable. None of them are plug and power.
Some are plug and run like the microtech and the one you are talking about if it also has base maps on it but you still need to put it on the dyno for a tune to get the best performance out of what you have just bought.
They car will run on base and you can cruise till you get it on the dyno.