I'm still using an Orbi setup that included 2 satellites plus the main unit. It's working really well for me now, but I hated the product for at least the first 6 months I owned it. Netgear kept releasing firmware updates to fix issue after issue. It had problems with not transmitting Homekit data properly for a while, and many other bugs like incorrectly identifying the devices it found on its network when you'd ask it to list them. The biggest issue seemed to be the router spontaneously rebooting under load or when it had more than so much up-time.
I've moved the setup between two different homes now, and I will say? In both cases now, I've needed to place one satellite out in a detached garage near the house and that unit always reports a really weak signal from the base unit. It still works for me, but I doubt it gets great data xfer speeds. I've concluded the satellites seem like they don't work well if they're more than maybe 40 feet from the base unit or each other, if the signal has to penetrate any walls. They do make newer Orbi models now with what appear to be more powerful units (they cost more and are physically larger, anyway). I can't speak for those ...
But yeah, Netgear seems to have eventually ironed out most of those software glitches and these have gotten the job done for me for quite a while now.
