What do you have done to your car? And what car do you have?
I think people really misunderstand how much of a difference a "tune" makes. The only reason I now have an SVT ECU in my car is because I basically have the entire SVT setup minus cams. UIM/LIM/TB/MAF/19# injectors. Unless you've got all that stuff and also headers, there isn't much reason for putting money into a "tune". The OEM ECU can reasonably account for an intake and exhaust (not headers). It is MUCH better to spend the extra coin and have a flash done on a dyno for YOUR car and modifications. I just don't see what a generic "plug and play" chip is going to do for your car. Hell, half the time a "mail order tune" that was done by someone familiar with our cars and done for our cars doesn't even really work to its full potential. Dyno tune is the best way to go.
^^This about sums it up.
To add to the above... A tune should only be used to account for changes that the ECU cannot cope with, or to fine-tune a carefully built engine. Certain changes cause different parameters fall out of the scope the ECU is designed to run within i.e. Turbo, Injectors, MAF, significant displacement increase, aftermarket cams, etc...
A chip or tune doesn't magically add power, and it should be the last thing you do, to bring all your mods back into scope for your ECU and get it to run optimally for the parts you've installed, and the fuel you're running.
Also, adding a chip to your J3 port on the ECU isn't minimal effort. Read the install instructions. you'll have to clean all the water-proofing resin off of that J3 port, which requires dis-assembly of the ECU, and in some cases, you'll have to solder some jumpers on the ECU mainboard just to enable use of the J3 port. :blackeye:
If you want to spend several hundred $$ just for a shift point adjustment, and/or to run premium fuel, go for it, against the advice of the more experienced members of the board.
Many people have already been down the road of tuning. The less popular options are less popular for a reason. make it your job to find those reasons, and make your own decision.