I am using unify, I can tell you the speed is acceptable, but but.. i tell you the service is always down.. some time within a month it down for 2 to 3 time and at the same time you are not able to use the service for few days and sad thing is you have to paid the full amount as well....
I giving advise that if you have other alternative please go look for other other wise you will feel very sad with the TM unify service.