I also have 46/30 chain rings that can be used with my 10-36 12 speed cassette and still get a 552% range. I use the entire range on nearly every ride in the mountains, so the range is not useless. If I need less range, I can change to a 10-33 to get the 14T missing from the 10-36.
Just this week I pedaled my 48/10 at 122rpm on the descent. It's more fun than coasting.