Welcome xsport, glad to have you and your '14 X here! The tuner debate is a personal choice, depends on the specific features you are looking for. If you want to upload & go, either tuner will be fine. If you want to datalog & refine your tune remotely, Unleashed is the best choice ATM. If you want to dyno tune your vehicle, either tuner can do it.
If you like the thought of datalogging, a good way to get your mind around it is to run a Bluetooth (or WiFi) OBD II adapter & Torque Pro (Android only) software. Obviously not going to be as precise or have as many available parameters as a tuning device, but gets your head in the game

BTW, post up some pics of your ride! When did you acquire it?