I was contemplating purchasing a g-tech performance meter for my 98' SVT mods I am planning. Does anyone have and good/bad experiences they would like to share before I lay out the $140+ for one?

E0 Black SVT
Born 4/2/97 - #104/6535
No Res
KKM Intake
B&M "EDGE"
RF Sound

1989 Porsche 928S4 - 316hp