Even though Samsung licenses the technology from Japanese vendors, they suffer 1) poor quality control, and 2) terrible ergonomic design decisions, and 3) extremely bad customer support -- don't expect to find anyone if you need support such as warranty fulfillment. A much higher-quality JVC or Sharp doesn't cost much more, and gives you years of trusty service. The image quality on this model is pretty poor, prompting a Korean reviewer to call it worse than many 8mm camcorders. I can't comment on audio, but I'd be really really surprised if a Samsung can have better audio than a Panasonic, which Digital Video magazine gave a very positive review of.
So go with the best and get a reliable Japanese brand.