Naturium Vitamin C serum thoughts?

Hello, I wanted to hear any thoughts on this Vitamin C serum. I wanted to start incorporating a Vit C but can't afford the $150+ ones.

This one is in a pump (which I hear is vital for Vit C) and is moderately priced ~$20

Anyone have experience w this brand. What other ones do people love and recommend? What did they do for your skin?