Split Groups - Creating Duplicates and Deleted Contacts

I ran one of the fixes it recommended to me. This was to fix the duplicates I had (311 of them). From a spot check, it looked like it was going to fix them properly, so after backing up my contacts, I went ahead and fixed the 311. In reviewing the changes, it deleted contacts, it created new duplicate groups and then split the original group into these multiple groups and spliting up the contacts between them or in fact for some groups duplicating the entire group. I do not recommend using this application.

jsgarton about Contacts Cleaner