Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Look good, not so reliable

I purchased 4 strings of these lights. They appear to be fairly well made and have a very nice icy appearance. The bluish tint of the white LEDs goes well with the bright blue LEDs.Bad news is that one section of lights on one string was dead out of the box. I didn't see a way to mess with the LEDs themselves, they seem permanently in place. After hanging the lights, that section would occasionally light up. Then a section on another string went out. I haven't been able to get that section going again. Two failures out of four strings is not a good track record, and suggests to me that there is something systemically wrong here.