I fitted this a couple of weeks ago.. I'm not entirely convinced yet.
It does make the front look less smooth.
Was quite easy to fit, once I had the car on my ramps (with extensions).
I cut the tabs down so they were flat, cut down the central pillars to 2.5cm or so, lined them up with the center of the grill, held on with gaffa tape then screwed in place with stainless self-tappers and washers.
I then pulled the sides round, trimmed the ends so they fit flush with the wheel arches and fitted in place with more stainless self-tappers.
I've now run out of things to do for now.. I replaced another parking sensor (that's 4 that the car has eaten now) and fitted a BlackVue camera for a couple of days - which I've removed as it blocked the mirror light sensor, so it was permanently dark and the videos were boring anyway..