Diet Pepsi 36-Pack

Bottom Line

Here's the real talk: Diet Pepsi is struggling with some pretty significant quality issues according to user reviews, particularly around carbonation retention and flavor changes. At $40 for 36 cans, you're looking at roughly $1.11 per can—and if half your cans go flat within an hour, that's not exactly a great value. If you're set on a diet cola, you might want to compare prices on competing diet colas to see if another option offers better performance and taste, or consider waiting to see if this product drops to a lower price point that makes the quality trade-offs more acceptable.