MicroShift is not owned by SRAM and most of their line is Shimano compatible. They make budget priced components that work reliably. Their higher end stuff is similar in weight to higher end Shimano stuff and works just as well, in my experience. The clicks are louder and shifts are more positive, which some people don't like. I find the more positive confirmation of the shift to be an improvement over Shimano's "light action" shifting.