Bought myself this a few weeks ago. It was, in my opinion, well worth the money - I've always loved sg-1. Anyway, there's 2 episodes out of place in the box-set, but both are only 1 disc from where they should be, and both are standalone episodes - so no harm done by ignoring it.
The cases for the individual series are very robust, and the discs are held tightly in place so they don't fall out, but still easily removable. In this it's typical of most box sets then. The menus and such are good, etc etc - nothing but good things there really.
There are two slightly less good points, however. The first is that the actual black case containing the series & movies is perhaps not as fancy as the rest of the set, but bearing in mind this is likely facing the wall where it is in storage so that the discs face forwards, it doesn't matter. The other niggle is the copy protection (if playing on PC) & copyright notices. Whilst I don't atall mind the copy protection itself, it does create pauses when the intro movies to the disc's menus are loading, though that's to the order of 1/2 a second at most. The final thing is the copyright notices, which can be rather over the top and annoying.
However, I'd still say a good buy - enjoy!