I bought this as a replacement for a pedal bin.  It is easy to assemble and operate.  The automatic lid opens smartly and closes after an appropriate interval - 5-6 secs is neither too short nor too long; the feature that allows the lid to be kept open for a longer period of 90 secs could be useful too.  The sensor is not over active so that the lid does not open unnecessarily.
I do like the retaining ring that holds the bag in place as opposed to having to simply fold the bag over the rim.  However, it could be improved by allowing to fix more securely - I find that the retaining ring feels insecure. [This review was collected as part of a promotion.]