How does Bill Me Later work?

Alright so I am looking to spend around $650 on NewEgg on upgrading parts, originally I was planning on only doing $400-$500 but I saw the Bill Me Later option and was interested in it, here are a few questions I have before I use it as I didn’t really get what I was reading:
How does it work? Does it send a bill home directly to me or can I have it so the bill is emailed to me and I can pay it online (my fiance is unaware of this big purchase so I would prefer she didn’t see the bill )
If I pay it off in say 5 months, do I get charged any interest? It says that there is no interest if paid off in 6 months by stated their flat APR rate and minimum interest rate.
And if you ever used it for another site or NewEgg, how did you like it?
Answer #1
You can find out what you need to know about this service here:
https://www.billmelater.com/help/index.xhtml