I installed Amarra mini Demo version today and gave it a short listen... Yes indeed, the effect on the music is noticeable, though definitely not a night or day difference, at least in my current system, rather very subtle in my case. It made the music played through Amarra somehow more relaxed, more refined, flowing with ease, especially noticeable with voices. Quite surprising I must admit. But music without Amarra sounded already pretty good, so I feel very little to no frustration at all when I turn Amarra off.
I also confirm that long name tracks are now handeled properly. However, I also confirm that gapless tracks can NOT be played gapless, and this is for me the only thing that will pull me back for the moment.
There is no way I spend $400 on a music playback software that is not able to handle gapless tracks. I'll be in once this major flaw is fixed. Untill then, I will just keep enjoying iTunes on my MB.
Botton line: there really seems to be more than just bits when it comes to computer playback... Fascinating. This learning curve is quite steep indeed !