My experience with Nest is not so good.
We bought a house which already had Nest thermostats and smoke alarms, so went with the Nest Outdoor Cam IQ (think was £329).
During the night time, frames go down to 15fps. It doesn't sound bad, but ANY movement results in significant tearing, so you cannot tell who/what it is. Which is annoying as most burglars avoid the day time!
Customer support is shocking; spent 18 months with back and forth. Initially they changed the camera and wire, problem persisted. Then we went into a cycle where they would:
1. Blame the internet speed (I have 200/20Mbps)
2. Blame the signal/router (I tried 3 different routers [Virgin Hub, a mate's TP Link, Nest WiFi] and provided evidence of the camera having access to speeds in excess of 100Mbps at all times)
3. Blame interference from surrounding devices (can you turn everything else off please? yeah sure, would you like me to go without electricity as well?)
4. Blame my network usage (yeap, I always use the most internet when I'm asleep between 10pm-6am)
5. Go back to step 1.
The original camera change happened before Google bought nest off; after that, customer 'support' is just a nametag and resembles nothing of the sort.
Apart from the fact that a £329 camera cannot provide video feed that allows you to recognise anything that moves (very good though on stationary burglars, if you get loads of those, this is the camera for you!), the ecosystem itself is very good.