So far I like my pure glow crystal. The light-up crystals make the room feel warm and inviting. The diffuser seems sufficient. I don't use it very often but it suits my needs just fine.

The one issue is the removable top for adding water and oils to the diffuser. It does not line up well and I can live with it but it makes it feel lower quality due to the design flaw. 

Overall it was worth the money.