For the past 3 years I have been using Acronis Drive Monitor (v 1.0.566), that is still the most recent version of the tool. The main purpose I use it for is determining a drive's "health". I use a SATA dock and any time I am backing up data, scanning for malware or checking for drive errors/defrag I always pull up Acronis and take a quick look at the status of the drive:
I have had a lot of times where a system would be exhibiting intermittent problems only to check the SMART stats and see that Acronis is reporting significant degradation on the drive. There are a few other tools I have seen, but wanted to see if anyone actually has any that they personally are a user of and would recommend.