Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great concept, poor implementation

I just loved this radio when I purchased it almost two years ago, and I must say that I enjoyed the features I have been able to access. However, the radio (most likely the power supply) died last week (out of warranty). Scanning the Amazon reviews and the Roku forum reveals that this is a common problem. Also, the software has steadily been invaded by bugs, resulting in limited utility. As others have noted here and on the Roku forum, tech support and customer service are quite inaccessible. Some on the forum have wondered if the company is still in business. Roku does seem to provide somewhat better support for its Netflix player, but I'm afraid to buy one because of my experience with this product and the appaling record with the radio. I did recently buy a Pandora radio, which also plays internet radio; so far so good!