Yes, I did try the Minima, and many other similar freediving masks and was not impressed. So far the Technisub Mikromask is the one that beats others by distance as for the vision field at low volume goes. However, I do not quite agree that the low volume is the most important at a freediving mask. It is not the low volume that matters, it is the compressibilty - how much the mask is able to compress in depth without the skirt collapsing and starting to leak, while preferably also preserving excellent vision both before and after compressing. The bigger the ratio is, the less you need to compensate the mask. So in fact having a mask with a fairly big volume on surface is not necessarily bad, if it can compress well in depth. Itis definitely better than a mask that has the bottom low volume already on the surface and do not compress more.
Such masks are rare though. The ones that compress very well, like the Sphera or Flow, use plastic spheric lense, do not offer perfect vision (though there are people satisfied with it), and get easily scratched. At the
Flow mask I measured the compression ratio of 5.6 (200 ml / 36 ml) , which means you can take it to the depth of almost 50m without compensating. The mask in not suitable for scuba or recreational freediving, though, on my mind.
And the Cressi BigEye is farly low volume for a scuba mask, and can be used for recreational freediving to moderate depths without any trouble. I own the BigEye since it came out, and it served me perfectly on many occasions both on scuba and at freediving. I do not tell it is ideal, but it is a very well acceptable compromise if you want to have just a single universal mask. Today, when I need to pick up a single mask for a trip where I'll be both freediving and scuba diving, I'll take the Mikromask. Before I had it, I used BigEye. But you can use practically any mask you like and are comfortable with, so if you prefer Minima or any other mask, it is just fine.