I have Xi2 and Palio. I got the Xi2 in a (NC) Cohiba Sampler in 2008. I've used it on average of 3 cigars a day since I got it. I think it is safe to estimate over 5000 cuts. Only now is the spring starting to get a little loose and one in ten uses, I need to 'assist' it opening (of course the Palio must be 'assisted' every time, so take that for whatever it's worth
I will trade it for new one soon at a Xi retailer.
I used the Palio about a dozen times when I got it 3 years ago and put it away. The Xikar just feels better in my hand, in my pocket, etc.
Bought the girlfriend an Xi2 a year and a half ago and she loves hers, also.
(I will acknowledge that the 2011 Xi2 feels lighter than the 2008 Xi2 - and maybe not as 'solid'. I agree that you should test drive all that you're considering before you buy.