If you're not intaking enough veg/greens a Greens supplement may be beneficial, yes.
Worth the money? Depends if you're already covering your bases with micronutrient intake via food/supps already. If you're looking for extra antioxidants for general health, it's a great option for that or if you don't intake greens enough obv.
I use Country Farms SuperGreens. They sell it in the supplement section at Walmart, lol. It's inexpensive and it's very comparable to the more expensive brands I have use. I've been using it everyday for the last two years and will continue to stick with it. I just like to have a little extra assurance I'm getting all my antioxidants.
It's like $14.95 for 15 servings.
How does that stuff taste?