To each their own i say.
I thought about bilsteins, specially since i could run to autozone and have them the next day, long story, but car was inoperable until replacements came.
I didn't want to buy something out of need and be unhappy with the purchase. There are alot of good reviews and negatives as well. With the uncertainty, having the option to adjust the settings was worth the inconvience.
The other things that i looked into was realibility and reviews accross other vehicles. There wasn't much info on Koni's on XI's since it appears they are fairly new to us so that was a gamble as well.