It's Company provided accommodation available 24/7, OR, opt out and take a reduced monthly accommodation allowance but also have hotac provided during your time back in Dubai. Basically, on your month working, you'll be in a hotel somewhere in the World, including Dubai. On your 13 days off, what you do and where you live is up to you. The Company is giving you money to take that that responsibility off their hands. This latter option is the one that the commuting guys will go for.
As for the education allowance, this change in policy is now why it's oversubscribed!
Harry