After a pretty terrible experience with a Tenda mesh system (an app that didn't work), and cheap powerline systems, the TP Link Deco is miles ahead. I really wanted a simple plug and play system and was a bit apprehensive about using an app to set up and control everything but I'm glad I went with it as it's pretty damn great tbh! The setup procedure was simple to follow and units updated all via the app. I turned my Virgin hub into modem mode and let the Deco do it's thing. I have full fibre but not the highest speed package. The speed increase from the main unit alone (connected to the virgin router via ethernet) was twice as fast with a solid 290 Mbps downstairs of a 4 bedroom house. I have the two other Decos upstairs which run about 100 Mbps. Complete house coverage and also the garden with no dropouts. Anything outside the lounge with the Virgin router and the speed and reliability would drop like a stone so the Deco is a game changer in our house. We can stream 4K downstairs while the kids can game and listen to music with no complaints.The app is really good too. I can set up profiles and all devices to different ppl and set up bedtimes/internet access for each child and outrite block WiFi if I need too and any device on the network. You can get right into the settings and prioritize devices etc.. but I'm not that technical. It seems to do everything we need it to without changing much. You can set up a guest network so your not giving out passwords for the main one and the app will tell you when new devices try and connect. Very happy we got this and really good value.