An important consideration when selecting your data backup solution is security. The backup information should be away from the main office or location of the system(s). The process of moving that data should be secure to protect the information in the backup copies.
What would happen to you when that information is compromised? For some business owners it can also mean non-compliance with regulations such as HIPPA, Sox, GLBA, etc. It can also be embassing if your information is compromised such as your customer information including credit card information.
I recommend seeking professional advise from an IT Professional and using a secure and reliable remote online service like DataPreserve.