I’ve got a space at the top of a small rockery that needs something on it. I don’t want to put a plant in a pot there because I will never remember to water it, there’s no soil. I thought a solar water feature might do the trick but I think it may be really feeble. It’s on the north side of the house but I can put the charging panel high up to catch the sun. If you’ve bought one was it worth it?