Asylum compared to P90X

So this is not a thread for people to bash each other (good luck with that on these forums!). Very Simply, I have been doing P90X for about a year and I love it. I saw the ads for Asylum and it looks really great too and I was thinking of trying it. Any P90x-ers on here who are now doing Asylum? If so:

1) Does it meet your strength training adequately?
2) Any issue with knee strain with Asylum?
3) Like it more, less, if so why?

Thanks - no hating please - both programs are great, I just wanted to hear from folks who have done both and what they like or do not like about each.