I have had both sets, as well as the X45 in the last year.
The Cougar was very cool, I used an F22 setup for years and the programming/etc was very familiar. I used the cougar for about 6 months with no pot troubles.
The one thing I hated was the impresicion around the center. No matter how many hundreds of curves and settings both in the Cougar setup and AH that I tried could I ever find something that gave me the precision for both long range shooting and non-nose bounce snap shots that CH gave me.
I'm one of the few with this complaint, other than that the Cougar was 100% for me, I just got tired of missing shots that I was used to hitting, and 6 months was a long enough trial period to try and get used to it.
Went back to CH stuff, k/d and accuracy went up by a factor of 2 in a month.
Honestly Hristo, I'd buy the Cougar, you probably will have better luck than I, as I think mine may have been defective (3/4 inch slop around center about 2 days after opening it), and plugging in a cheap set of gameport pro peddals works very well with it.