I have 47 thread/matter devices, alongside some 10-15 matter over wifi devices, so not quite 50, but "close enough".
It's not as fast as Zigbee, not in day to day usage, and not in terms of reconnecting, which often takes 30 seconds (ie. after a power outage) where my Zigbee devices just seem to reconnect instantly. On day to day usage there's a slight delay when turning something on, but it's maybe 100ms or less.
I initially had quite a few problems, but after "standardizing" on a single thread network (I had 3 before for some reason), as well as adding some wired thread border routers, things have become much more stable.
My zigbee to thread is still a "work in progress", replacing devices as they fail (ie. lightbulbs), and I'm also still adding new Zigbee devices like the Aqara T1 Valve controller, but I prefer thread over zigbee today.
One thing I will note, people tend to underestimate the range of thread (and zigbee for that matter). Each mains powered device will function as a repeater just like zigbee, and I initially thought I might need a couple of smart plugs as repeaters, but despite having a somewhat large house (by european standards) as well as double brick walls dividing it, my thread devices have no problems "seeing" a thread border router in the opposite end of the house.
It's not as fast as Zigbee, not in day to day usage, and not in terms of reconnecting, which often takes 30 seconds (ie. after a power outage) where my Zigbee devices just seem to reconnect instantly. On day to day usage there's a slight delay when turning something on, but it's maybe 100ms or less.
I initially had quite a few problems, but after "standardizing" on a single thread network (I had 3 before for some reason), as well as adding some wired thread border routers, things have become much more stable.
My zigbee to thread is still a "work in progress", replacing devices as they fail (ie. lightbulbs), and I'm also still adding new Zigbee devices like the Aqara T1 Valve controller, but I prefer thread over zigbee today.
One thing I will note, people tend to underestimate the range of thread (and zigbee for that matter). Each mains powered device will function as a repeater just like zigbee, and I initially thought I might need a couple of smart plugs as repeaters, but despite having a somewhat large house (by european standards) as well as double brick walls dividing it, my thread devices have no problems "seeing" a thread border router in the opposite end of the house.