Joomla Jet don't just build themes they create designs. This month you get two and if you're a member of the club they're for free.
The premise for all Joomla Jet themes is simplicity with functionality and adaptability. You might just see a great design but if you push the theme and explore possibilities you can get exactly what you need.
This month you get two; JJ40 and JJ41. One is nice centred theme the other is left aligned which is something you don't often see these days and when you do you have to ask yourself why.
I can quote you both theme specifications but you're only going to read them again at Joomla Jet because if you don't visit them to check out these themes you could potentially be classified insane.