"Surprisingly easy to set up and it worked"4.0 starson by Claustral
Pros: Relatively simple to set up (for network hardware). More powerful than I expected - got the signal through multiple brick and concrete walls over a 100m stretch.
Cons: Set up could be even simpler. For example it's possible to chose the wrong type of encryption (you should use the same type as your existing wireless network). D-Link say the product is discontinued on their web site.
Summary: Works better than expected, and well enough to do the job.