If you don't want to learn how to tune, go with the handheld. If you really want ot get the most out of your car and want ot learn how to tune your car go with HP. I have HP and have learned so much and now have the knowledge to tune the rest of corvette's for the rest of my life! Go HP if you have the desire to learn about cars and how they work.
I have used handhelds and they are limited. HP Tuners is best option and you can do so much more down the road. A few basic adjustments will add new life to your car. If you get HPT, ask lots of questions and you will gain the knowledge for tuning and what fun it is