I applaud Shimano for its attempt to consolidate / simplify what was a complicated and confusing mess of lower to mid-tier groupsets. Short-term it will cause a disruption; longer term I think it will be a good thing. Time will tell.

I haven't encountered any CUES components in the wild, nor have I had the opportunity to work on any of the CUES stuff at the shop. I'm sure it's coming and I look forward to checking it out.