I have 11 and use the Eyeboot 19 port hub. The reason I bought that one is because better hubs fram Amazon didn't ship to my country. While the hub looks great, and it probably is, I only have trouble with it.
1) I cannot run all 11 at full speed (924Mz), that doesn't work. So I have a mix of frequencies to make it just work. I can live with that
2) The USB ports are just a bit too close so in reality one can use only every other USB port, this seems to be a common issue with many USB hubs, but not all.
3) The USB connectors used on eyeboot hubs seem a bit weak, jstephanop also pointed this out. Because of the constant vibrations from the minifans eventually some may break down. I have at least one where both power pins and data pins suck and connection a/o power gets interrupted. In effect I am loosing more and more USB slots
4) It is hellish expensive

A few pages back someone showed a setup with smaller hubs with 2MLDs per hub and he had four of those hbs daisychained. That seems to me the best solution in terms of cost, reliability and performance.