I bought this specifically to monitor hard disk activity in detail. It’s one of the few apps that begins to replace some of the function of the long orphaned MBBench. However, I have more disks than can be shown at once in the window. Although there is a scroll function, scrolling is essentially useless because it doesn’t STAY scrolled—it immediately jumps back to the top, so I cannot really see what’s going on for more than a second or so. Also, some of the text on the right gets cut off if the drive names are not short. The size of the dropdown should be user adjustable, or should automatically adjust in both width and height, so that no text is ever cut off and no scrolling is needed.Another improvement would be to be able to see the names of the Hard Disk Volumes instead of the device names. It’s not always clear what you are looking at otherwise, or you have to try to figure it out if you have a lot of drives, particularly in similar housings.But at LEAST the scrolling should stay put until the user clicks away or scrolls elsewhere.

Finally someone put together a clean, functional and readily avaialble application for performance minded Mac users. The small bar charts are always at the top of my screen and do not consume and productivity real estate. All I have to do is highlight the information I’d like to investigate further and the full chart appears with the option to open “System Monitor” to dig a little deeper. Exactly what I had in mind when I wanted something to monitot the performance of my iMac. I have the 8 core iMac with 32GB of RAM and it works perfectly without any of the stability issues mentioned by the previous reviwer. I believe the issue presented by him was fixed in the subsequent version per the developer comments.

I use this a lot, but when I click the GPU section it crashes outright on a breakpoint error.

This provides me with exactly what I wanted...graphs across the top of any active display, no working space consumed. The developer let me customize [Prefs] to exactly what I wanted. I have only the Disk & Network graphs, both expanded to 100% of history, both with no lables. With just a glance, I can see if there is any suspicious activity going on. More details on both is just a click away. For the price, I think everyone should give these folks a chance! I have a mid-2012 MBPro, upgraded to 16G and 1T SSD. Just upgraded to Mojave last nite...works fine! Congrats on a well executed app.