I often compete with and lose deals to Eyetrax due to price. Our solution is usually a solar powered ptp wireless or 4G/LTE Mobotix 6mp camera system that costs 2-4 times as much, primarily because our camera and wireless/4G/LTE is powered 24/7, delivers REAL TIME LIVE video, and we use top of the line components with maximum reliability & functionality.
The Eyetrax system is not on 24/7, it takes snapshots at timed intervals, sends the snapshots to their servers. Since it's not powered up 24/7, it DOES NOT offer real time live viewing, and allows for a very small solar electric plant, and minimal 3G/4G comm use. They have a "Live image request" feature which allows the user to request an image, which is then processed and made available for viewing (I don't know how long this takes).
Feedback that I've received from Eyetrax customers has been spotty. Some like them just fine, others have had lots of issues/problems.
I'd like to see IPVM review Eyetrax and similar system types.