Great principle, poorly executed.
The actual principle is great, once you've worked out the bits that are not covered in the instructions.
As in other reviews, joints are prone to leaks.
Ground spike is a bit short, for soft ground - which gets softer as the unit 'dribbles'. I now have mine mounted in a tube knocked into the ground. Side to side range setting is good, again, once you've worked out how to set it - not mentioned in instructions.
Height of the jet is too high for a small garden, even on low range setting (again not mentioned in instructions), ,the spray goes too high and over hedge to next door. I mounted the device leaning forward, to counteract this but of course leaning the unit forwards, then means the sensor is facing at an angle downwards the ground, limiting it's range.
Quality? There is a panel on the top that fell off after being mounted for a few days, leaving a big hole to allow water in. The panel has a 'circuit board' on the underside, but there is nothing that appears to connect with it. The panel is warped so does not sit tight anyway, but have gaffer taped on for now pending seller's advice.
I've only recommended it, because it is the only deterrent that seems to work.
Verified purchase: YesCondition: New