TOMQ   Just Great! Allows me to completely review every Time Machine backup and then block unnecessary/unwanted files from being backed up using the Time Machine preference pane, saving space (and time) on my backup drives/volumes. (Could also use the BackupLoupe blocking option, but I like to use TM.) Color coding for different size files/folders is wonderful! Very well laid out structures to see exactly what is happening with TM backups. Trivially easy to use. Solid as the Rock of Gibraltar.  
(Version 1.8)

TOMQ  I used to have strange problems, repairing my main disk drive not infrequently,

often needing DiskWarrior to fix problems

I was only using Disk Utility, DiskWarrior and SMARTReporter.

Since using SMART Utility, I have been able to carefully monitor for Pending Bad Blocks and reallocated Bad Blocks discovering that these problems were occurring on my main hard drive. I replaced my harddrive under warranty and ALL PROBLEMS HAVE DISAPPEARED!

There are no more Pending Bad Blocks, much less reallocated Bad Blocks, and all the strange problems have gone away. I almost never need to repair with Disk Utility or Disk Warrior.

Monitoring my other computers to check for pending bad blocks and will replace any hard drive that has them. I'm a happy customer of SMART Utility. And, BTW, I have found the Support to be excellent.  
(Version 2.1)

TOMQ  Absolutely right; my same experience!  
(Version 4.2)

TOMQ  Nice timer---but---give an option to NOT have TU stop shutdowns and restarts when TU is running or paused. Very irritating!!! First timer I have ever used that does this. Don't! Make this an OPTION.  
(Version 2.3.2)