Given the task definition and input, reply with output. Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

I unpacked the adapters and hooked them up according to the instructions; one connected to my router, the other to a computer. While my wifi connection gave me about 12Mb download speeds, the best I saw with the Zyxel was about 2.5Mb. Even moving the laptop and 2nd adapter to the same room as the one connected to the router still only gave me about 2.5Mb throughput. I see from other reviews that some people obtain great speeds with these, but they don't work for everyone. Returned.
Negative Review