I love the way mine look, compared with airbox/ side panels. Not sure I notice any performance difference; if there is it must be relatively small.
But, I was surprised that the engine is a good bit louder with pods rather than airbox. Don't mind it being a bit louder, but it makes me rethink doing an x pipe, which I had intended, cause it's loud enough now I think. What I don't like is that not only is the exhaust sound louder, but I hear more of the Triumph high-whine engine sound -- I guess the crankshaft..? Not sure what that sound is, but others will I think. It's sometimes described as the "sewing machine" sound, or a "Jetsons" sound.
So, some unintended side effects, but overall I am still glad I did it, mostly for aesthetics.