The unlimited manual testing capabilities across so many devices saves significant amounts of time and money. In addition, the ability to have multiple sessions open at the same time I can tell right away if there is a difference in functionality of iOS vs. android.
Sauce Labs tool has improved my testing efficiency to allow me to include devices I may not have had time to test out before. As most QA people know we get pinched in the time we are given to test. This tool allows for more testing to be done in that limited amount of time increasing the number of found issues before it reaches the customer.
