I'm in the process of converting from the HMFAYASAL Omega theme to Ren Yuan's Leonids theme which frankly looks amazing. It's at the point where I think it's stable and have gone live with it. I'm still going through doing comparisons from the old and new site but haven't found anything significant thus far.
I will be monitoring broken links for a while but if you find anything broken which is interfering with your ability to find what you're looking for, please drop me a line.
I'll remove this notice in a few weeks once it has settled down.