Let me start by saying I'm obsessed with my Stanley tumbler, and this accessory set definitely adds some flair and function to it. The rose quartz color is spot-on—it matches my tumbler perfectly, which is a huge win for my aesthetic-loving heart.

The silicone boot is probably my favorite part. It fits snugly on the bottom of my 40oz Stanley, protecting it from scratches and giving it better grip on surfaces. No more loud 'clunk' when I set it down on hard tables! Plus, the non-slip base has saved me from at least three potential spills already.

Now about those straw toppers...they're adorable! The little flower-shaped one makes me smile every time I use it. They do a decent job keeping dust out of my straw when I'm not drinking. However, the smaller toppers tend to pop off too easily in my bag—I've already lost one.

The spill-proof stoppers work...maybe too well? They create such a tight seal that drinking becomes a workout. And that loud 'thwop' sound when breaking the vacuum? Super embarrassing in quiet places like the library or meetings. I've started only using them when absolutely necessary (like in my car) because they're also a pain to remove.

Quality-wise, everything feels durable except for some of the straw topper attachments—the tiny bands broke on two of mine after regular use. The silicone itself cleans easily though, no weird smells or stains after weeks of use.

Final verdict? If you want cute accessories and basic protection for your Stanley, this set delivers (especially for the price). But if you're looking for truly practical leak-proofing that's easy to use daily, you might want to keep looking.