Would this be a good wireless adapter for my router?

[ianko66]

(So I had a topic running earlier, and I got some answers I was looking for. But now I'm looking into specific products, so don't mind me rehashing almost the same topic (but not really ))

This is the router I have currently:
http://www.newegg.com/Product/Prod [...] 6833127079

And this wireless adapter is on sale for $18:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833320089&nm_mc=AFC-C8Junction&cm_sp=&AID=10446076&PID=6146836&SID=29d474zzwu0x

1. Is the Adapter worth getting?
2. Is it compatible with my router?
3. Would it be good to have that adapter for in the future when I have a better router to work with?

 

[dbhosttexas]

The link for the router is dead. Please list make / model.