SRAM X01 Eagle XG-1295 Cassette

After upgrading to X01, had nothing but problems. Chain broke on a ride (first time in my life), then found a tooth broken on the cassette, the pesky 52T cog. The rest of the cassette is machined out of a single piece of steel. The 52t cog is riveted to it and appears to be aluminum. My guess the force of the chain getting on and off the 52T cog is too great because of a jump from the 42t-52t, the material choice or the heat treatment may be inadequate to handle it. Have seen many MTBers having this issue with X01. Just google "X01 cassette broke".SRAM stated that cassette is not covered by their 2-year warranty because it is a wear item. I guess that would exclude the entire groupset. So, no warranty from the manufacturer.In summary would say that X01 is a lot more expensive than XG and a lot less durable. It is .3lb lighter, however