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If you back up with Sprite, just make sure you restore to the same ROM, otherwise you may run into issues. You will get a few options upon restoration of your backed up info such as Merge level 1, 2 or 3. You can go to Sprite's website for some quick info on the differences between the 3.

Also, I use Sprite all the time. It will restore your phone exactly back to the way you had it before including texts, emails and accounts, reg edits, programs installed and settings, call logs, personal preferences and more. Exactly the way it was before.

Good luck!

Edit: if Google Maps is installed to your device it will back EVERYTHING up. If its on your SD, just back up your SD as well in the backup options and EVERYTHING will be restored EXACTLY how it was before.