I have been using this software for 7 years now, it's always up to date with new features which are released by them regularly so there is nothing that i dislike about its use or performance in general as long you know how things work from your end point of view; if needed support can help out easily but they also provide tutorials online too! Easy access via mobile app would be great addition though maybe not feasible at present time since we need more resources than just one person could do alone (but definitely something worth thinking abt).
We've used all these tools over past few weeks - File Backup Manager was simple & intuitive tool like most others while other 3 were little difficult/confusing initially until getting familiar wth their functions then started liking em ;-) So far no issues reported yet :-), only positive comments heard here:-).