Luma is a significant improvement in coverage and throughput. I went through may routers and extenders, ending up pretty good coverage around the house, but there were dead areas, and one had to continually switch access points with different SSIDs. With Luma, there is complete coverage, significantly faster throughput, and just one SSID, so no switching! The system also seems pretty good at allocating bandwidth among devices and managing conflicts. I'm glad I got it.
However... the product is clearly immature. Many of the claimed features seem missing or incomplete, at least in the Android app. The "ten minute" setup didn't work at all with my Note 5, and I eventually borrowed an iPad to do the setup (support admits the iOS setup is much, much better than the Android.) Many obvious capabilities don't exist, such as being able to rename your "Living Room" device if you move it.
Fortunately many (maybe all) of the weaknesses are software, and I'm hopeful future updates will resolve current deficiencies. Meanwhile, it's great to finally have a simple, single SSID system that works well.
I would recommend Luma to some friends. For folks like me, the annoyances of my old system were much worse than the annoyances of this new system. For those generally happy with their current setup, I would recommend waiting.
Bottom Line: Yes, I would recommend this to a friend
The initial hiccup is because of the way we traditionally configure the routers. I had the same concerns. Once done, the routers synced up and the firmware update synced.