Couldn't get done what I intended to use Dropbox for on a business account due to all the glitches and confusing way it's designed, so I never really used it. Got a notice of a $799.50 charge that I didn't want and was unaware it would renew for full year when the norm using other apps is a monthly subscription.
This sting tactic although legal is unethical and bad business.
Taking that amount of money unannounced and on short notice at a time when it's needed for more pressing family maters is UNETHICAL! Their refund policy is nonexistent, as well as their customer service.
Buyer beware!