As long as a pistol/revolver functions as it should, why does it need features? About 90% of the time the features are something some rag writer wrote about and talking it up to get you to buy something that an advertiser is paying the magazine to do. Nothing against the Tisas, as a good friend who is very knowledgeable on M1911's thinks at the price point they are great. All my guns are pretty much stock on the outside (where the "features" go), my work is on the inside concerning feeding and trigger function. Will yours feed an empty case? If it does then it will feed anything and that equates to reliability.........
It doesn't need features, but I'm prone to hammer bite on 1911's so I prefer a beavertail, and I like checkered front straps to hold onto, and I like Bo-Mar style adjustable sights and brass bead front sights that are blended into the slide too. The MAC gives you all of that for about $750 signed/sealed/delivered. Yes, a gun "needs" to function, but that doesn't mean that there aren't any valuable upgrades to an old 1911-A1. My Clark Gold Cup is certainly better than it was when it left the factory.