Meraki and Verkada are NVR-less, storing video on in-camera storage and being managed by a cloud service. Because of the cloud service, there are annual license fees that are significantly higher than our annual security camera budget, so we’re a mix of HikVision and UniFi with NVRs for each. Security prefers HikVision because UniFi sometimes won’t respond in their mobile app.
The long version:
The two systems I’ve seen in use the most are Meraki and Verkada. Both have similar features and appear to be pretty decent. I’ve seen a demo of each and personally lean towards Verkada since we aren’t a Meraki shop.
In the end, the cost to go with a cloud manager and in-camera storage is significantly higher than simple cameras with an NVR so we have a mix of HikVision and UniFi. UniFi was significantly less expensive, but seems to be less reliable when accessing from off-network (their mobile app requires using their free online service, which has the level of support you’d expect from a perpetually free cloud service) and the HikVision app requires opening/routing ports on a public static IP.
The UniFi cameras and interface are really not that terrible, my only issue is occasionally our security team won’t be able to connect to the NVR from the mobile app without any traceable reason and it is usually resolved by rebooting the NVR. Because we have a 45+ camera system, we built our own NVR so I also have to maintain the linux OS it is running on which isn’t terrible but can be daunting when I think a change I make may take all of those cameras offline or possibly lose video archives. So far we haven’t had that large of a catastrophe, but we came close once and the UniFi forums came to the rescue.
If money were no object, or we had a much smaller deployment, I would prefer Verkada out of all of the options I’ve evaluated, purely because of the features and functionality and ease of remote access. The annual fees also mean support, which means I shouldn’t be troubleshooting anything other than an internet connection for each camera.