I have not done a mineralized soil tank yet, most likely I will next year, as it is getting too cold for me to do it now.
As a GWAPA member, I know Aaron and several other members are already running tanks with mineralized soil, high light, and pressurized CO2 with great success.
Key advantages are:
1. You no longer have to spend money on fertilizers, except for dosing a little potassium every now and then when needed.
2. You will no longer need to do large weekly water changes, maybe 15-20% every couple of weeks.
3. The soil will last indefinitely.
You are in no way limited to a low tech, low light set up with mineralized soil.