These are Technology Transplant kits. Or at the very least, it is the same guy (Mode Machines/Touched By Sound also market these). You can read LOTS about them around here if you have a little look around.
But to summarise.. There are better places to get one from, in my opinion
Yes, it might cost you a bit more. But you'll have good quality authentic parts, and none of them will be missing. And even if you did have some issues with your kit, the more well respected suppliers (most of which are around on here) will usually be more than happy to help you out.
Just to name but 2.. Check these suppliers out.
Willzyx essentially took on the x0xb0x from Adafruit, and operates out of Taiwan and ships worldwide.
x0xsh0p is German, and is ideal if you are europe, as you'll have far less shipping/tax headaches, whilst still getting a great kit.www.willzyx.comwww.x0xsh0p.de
There are a couple more good suppliers of kits too, but their name/urls escape me at the moment! Perhaps other people can chime in with their suggestions for good suppliers of kits?
In the mean time, you won't go wrong with either of the above two I mentioned.