That is definitely well worth the money.
Being able to adjust the firmness of the shifts would be pretty helpful, especially if you have a big power adder on your auto Celica, like N2O or forced induction. The firmer shifts will reduce friction, which cuts down on heat and prolongs the life of the transmission.
I wonder how you control all of these parameters? I wonder if you can use the ability to control the torque converter lock up to launch your car like you have a higher stall speed? Probably not, but that would be cool.