My opinion on it would be, if you are having electrical issues like battery not fully charging, lights too dim and/or flickering, hot electrical or plastic smell when driving, ect., or if your Bulkhead Connector looks bad, then do the Mad conversion. Also, if you're running, or plan on running, more than a 40 Amp alternator and especially if you will also be running high power audio and/or Halogen lighting upgrades, then do the Mad conversion.
In my case, I haven't done it, although I have kicked the idea around. I don't have a radio in my car at present, so, I'm able to reach through the hole and touch the wires on the back of the Ammeter while driving. I found that even with the headlights on and 55W halogen driving lights turned on, both connectors at the Ammeter are cold, not even warm, even after 20-30 minutes of driving. I've checked and bulkhead connector looks good too. However, just because I'm not having problems now doesn't guarantee that I will never have them and just because I'm not having problems doesn't mean that someone else won't have problems with their electrical system if they leave it stock.
The only electrical problems that I've ever had with this car were a burned out headlight switch, which happened when I installed halogen sealed beams and a melted connector at the floor mounted dimmer switch, also caused by the halogen sealed beams. I also had to replace my alternator once, many years ago. I don't know what alternator I have now. It's probably one of the lowest amperage units, but it seems to get the job done.