I don't know if it is in that thread, but depending on what you use ML for it may well be worth downloading the nightly build. A lot has been added since the last 'stable' release.
To me its worth a least several hundred dollars if I had to pay for it - which reminds me I'm due my yearly donation.
Although the nightly builds are not guaranteed stable, they are usually OK. If there is a problem that stops something that was working from working properly it is usually fixed within a few days.
I update to a new build every few weeks and only once went back to a previous build while something I wanted was fixed. The developers are really pretty darn awesome.
Wile I have started using it for video, multi (more than 3) exposure bracketing and focus stacking are two things I use it most for. For macro it means I can take 50+ focus stack shots without dragging a computer with me.
Bulb timer is nice for super long exposures too - you can set a 2 min exposure for instance.
Tonnes of other stuff in there though.
Oh and RTFM before using it. There are a couple of things you should know - waiting a few seconds after opening the SC/CF card door before removing the card is the one that immediately springs to mind. Most people that have problems with it are self-inflicted - see the forum bug reports.
EDIT: looking at the thread I notice (and you'll probably see this on the ML forum) that most of the talk is on the 5DIII and 7D builds becasue these are still new and being worked on. I wouldn't get too wound up about people having issues with those builds. The unified build you will be using (as well as nightly builds) are much more stable. The guys have been working on the other cameras, including the 60D much longer.