Got this as part of the mupromo bundle recently and was excited to try it. However I could never get the email sharing to work on my .mac account, making it practically useless for me as email is the only sharing option that works for me. The options were fairly easy to navigate and figure out, and the GUI is not bad. The Window/Activity log showed nothing for me even though I had several motion and manual triggered shots. CPU Usage is ridiculous, I presume it's processing the video to detect motion but maxing out the CPU permanently also makes this a non-starter. (Note when I restarted periscope the CPU usage settled down at around 10% so I'm not sure why the initial high usage was there) Lack of video, which should be a simple feature to add is also a minus. I couldn't get a sense of what the delay between snaps was after a trigger and if it was configurable. The default setting for the video is reversed, I'm not sure why that is but I had to find the video setting to flip the video so it looked correct. The Support/forums were of very little help. Most of the related posts had no resolution that could help me. I gave this a 2 for ease of use because I had difficulty verifying/debugging why email was not working and help was useless. For value I got this as part of the mupromo package so the cost was not an issue, however the fact it doesn't work with email makes it little/no value for money as I can't use it properly. Stability I gave a 3 because of the CPu loading issue. I wished this would have worked like I wanted it to. Great idea, not so good execution.