I thought for a while whether to signup and get the free wnr3500L router. Decided not to, fearing that the company will live up to its name (Sam Knows what you are doing ). Also was worried that the test packets will eat up my monthly . Nice to hear that it went well for you. I think you can keep the box. Flash it up with dd-WRT to make sure that it is NOT sending your data without your knowledge.
Your tinfoil hat fell off. SK's testing module is opensource. Netgear firmware is opensource. They do not know what you are doing. They are not snooping on your facebookses and twattors. All the do is run benchmark about once an hour of there's no other traffic on the line. They are using about 2gigs/month worth of bandwidth. -- Check out my awesome city of MxxTopia »mxxtopia.myminicity.com/ind or »mxxtopia.myminicity.com (the more people visit, the bigger it is)