The Symphony Mini is a nice all round waterset. Its performance is good and it doesn't require any knowledge of watercooling. For a beginner this is great. Additionally it looks good next to your home theatre system. If you're afraid it will mess up the looks of your living room, don't worry, the Symphony has style.
Besides the fact that removing the motherboard is required to install the waterblock I can't really think of things to complain about, this is good. If you are looking to watercool your CPU but do not want to go through a long component search and complex installation, the Symphony Mini is for you.