To the original poster - as other have stated, best of luck if you decide to search for greener pastures. Any such choice bnrings potential for issues, so I would suggest you do some forum reading to determine the kinds of things that are lurking with any other software you are considering.
As far as X2a goes, there are a great many folks who are running with X2a as their production go-to recording software. As one person posted above, lots of times folks do not post when things are working, but only when they are confused about something or think they may have some sort of bug.
Certainly, there are quite a few posts in this forum about crashes and glitches and audio dropouts and such, but MANY times, if not most times, those issues are in fact caused by things like:
Installation issues (not installing Sonar with the run as administrator option.
Audio interface driver issues - drivers may not be available for either Windows 7 or Windows 8, or a particular driver version is unstable.
Mis-match of sample rates between Sonar and the interface.
Background software running on the computer that conflicts with the operation of Sonar.
Choosing a driver mode that has problems on a particular computer. Sometimes WDM works best, and most times ASIO works best.
In the above cases, these are generally solvable, except where there are driver issues that are beyond the ability to alter - such as no drivers available for Win 7 or Win 89, or stability problems with a given version of a driver.
If you look at the threads for the above kinds of issues, you will find that in most cases those issues are resolved, and are not at all attributable to Sonar as the cause of the issues.
There ARE some bugs present in Sonar, and that is true with any software, but I believe that many of those also have work-arounds available.
So, again best of everything to you for whatever you decide. Please KNOW that there a giant bunch of folks here in this forum who will go to great lengths to assist you or anybody with whatever questions or issues are presented in posts.
Bob Bone