As with so many things, whether this will work for you depends on your situation. What kind of riding do you do? How hilly is it? How powerful are you?
One of my bikes has a 2x9 drivetrain. A 1x12 would give me the same number of usable ratios, but that bike is also overgeared for me as it is. Another bike has 2x11 with 46/30 x 11-30. I spend almost all of my time in the big ring on that bike, but when I need the easy gears, it's nice to have them. The 1:1 low gear has been adequate for everything I've run into so far, but it wouldn't be hard to change that to be 10% lower.