About "OBBO Android SMS & Contacts Backup" of this software, someone have any suggestions? Please h

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china
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ipower
About "OBBO Android SMS & Contacts Backup" of this software, someone have any suggestions? Please help!
Because I want to buy this software, I understand that this software is very powerful, can either backup and restore SMS and can backup and restore Contacts, It can help me save my SMS text message & contacts to my desktop computer for backup. If it really helps me read and manager SMS & Contacts in computer will be great thankful..
PS:My phone is Samsung Galaxy S4 on Android 4.2.