Love this birdbath! Set it up 2 days ago (took about 4 minutes). It's sturdy but much lighter than concrete. Yes, for the fountain to work, the sun needs to be shining on it, but when it's not sunny, it still functions as a great birdbath. When you put the little "shower head"on it, it sounds like a babbling brook. Definitely recommend it. I'm very happy with it!