As a relatively newbie to Joomla! I have found this component a true lifesaver! Had a botched coding error and luckily I had Akeeba backup and Akeeba Remote. Both components saved the day especially since it was a clients live site.
The team at Akeeba helped me on two occasions on the free core version that was invaluable, timely and professional. Yes I said the free version.
So I just had to purchase the professional version, worth it's weight in platinum!