Sure, the BDS and Clayton kits are better, but I just can't bring myself to spend more on a lift kit than I did for the whole Jeep.
I understand budget conscious. But I also understand paying a bit more for parts that I KNOW for sure are going to last. Like I said before, I'm not buying a kit that will always have me thinking "I sure hope that caster adjuster doesn't fail on this trail" or on the highway when I hit a bad pothole at 70 mph.
As far as price and options.
The IRO kit is $600. If you want adjustable length arms, (why wouldn't you?) it's $700.
TnT and Rubicon Express radius arms run around $1000, but you get adjustable arms and a huge beefy skid plate instead of just a small crossmember.
BDS is $1000 but it's a true adjustable four link.
Poly Performance and Clayton are both selling true 3 and 4 link kits starting at $900.
And after looking at all the options, I'd say the Serious Offroad kit is a perfect budget option. $750 gets you adjustable radius arms and a crossmember with some TC protection, all built with big strong joints like all the other normal radius arms.
Is saving $200 really worth the hassle in the long run to get a much better kit? And with the Serious kit, it's only $50 more than IRO!
A funny point: on the IRO site, they tell you how crazy beefy their arms are, and how thick all the steel is, and how much the kit can flex, but don't even mention their 'revolutionary' caster adjuster anymore...