I am in the process of installing a Crucial M500 in to my '12 Mac Mini. I have not used TRIM enabler. I have tried to understand what TRIM does for SSD's and noticed that Crucial has a feature in their firmware called Active Garbage Collection that, as far as I can discern, performs the same activity as TRIM. Can anyone speak to this? Do they do the same thing but with a different implementation? I'm encouraged by those who have been using 3rd party SSD's without TRIM and had no issues, so I'm just enjoying the performance boost over the 5400 rmp HDD.