That's like asking whether you should go with the
3.3T or the 2.5T. It's easy to say, yeah, go with the bigger engine and more HP. However, if a guy is really honest with himself, the real answer is: it depends.
Same goes for suspension
mods. All depends on what you are trying to achieve,
and how you drive your car. Just because mine is a 2.5T with Riaction coilovers doesn't mean that is the right for everyone. Coilovers offer a lot more adjustability than a set of lowering springs. That is great...
if you know how to tweak those added variables. If you don't, your car could handle
worse than if left stock. Or, it might do things contrary to what you expect, whether you realize or not.
Not to say you couldn't acquire the necessary competency to take advantage of coilovers. You need to go into it knowing what you don't know, the consequences of getting it wrong, and commit to getting it RIGHT... and do what it takes. I will say this... if you are not willing to spend weekends getting under the car and tweaking the coilovers, test driving the car extensively (preferably at the track or AutoX), and go back to tweak some more... I would think twice about going that route.
Anybody that tells you they can install and setup your coilovers in one shot... they are either BS'ing, or have zero clue about suspension tuning. Or are experts with decades of experience, including this particular platform.
Then again... if all you want to do is to lower your car to look cool, then forget what I said above. Get the coilovers, set the ride height to whatever looks good to you. And be happy.