Yes, it is a bit pricey for what it is - but we really love it!  Unfortunately, a full day of trickling water hasn't happened very often as Summer has been a bit hit and miss this year.  After setting it up in the garden we did think it might be faulty so we switched it off for 3 or 4 days to give it a good charge up and since then it has been ok.  When we do get a full day of sun the water can happily trickle away from 8am through to 10pm, with the light also switching on from around 8pm.  With a cloudy day it can start up at lunchtime but then it's off again by mid or late afternoon.  That aside - we're still very happy with our purchase and looking forward to more Sunny days when we can see and hear this water feature in its full glory.