I use the Deco X50 mesh kit for my home.
The house is two stories across 200sqm and despite having an expensive router there were parts where wifi was under 10MB/s.
I made that mistake originally of thinking a better router would fix the problem but it did not. The thing is there are laws all around the world that limit how powerful a wireless signal can be and because of that it doesn't matter if you have the best router or not you'll never be able to get good speeds everywhere with a single router.
Then I ended up buying the X50, they were super easy to setup and within 5 minutes it was done and now get fast wifi everywhere, even in the yard outside, the signal only drops out when I'm about 10 meters away from the house
When you say easy.. was it a case of just plugging it into your router and setting it up through the app?