Hi there. I have a Janome sewing machine and overlocker.
That deal is **** hot. The machine in it is intermediate and an overlocker is not for beginners (but you can learn) but the two of them together for $700 is a good deal. Janome is a reliable brand too. From memory, I paid around $400 for my overlocker alone and $400 for my sewing machine which I think is a few models down from the one in the deal.
If you are a first timer, find a local sewing shop (there are plenty of Janome agents around) and see if you can't get into a regular sewing class. Most shops have them and they're a great way to learn.