I'll admit, I was skeptical, but I read several glowing reviews of the Chef'n StemGem Strawberry Stem Remover in magazines this spring, so I sprung for one on my last visit to Sur la Table.
I gave it a workout yesterday with two huge Sam's Club containers of strawberries. It took me awhile to figure out the best way to insert the claw, and I ended up pulling off the green caps, then aiming the open claw, and plunging it over the stem, then letting it go. A gentle twist, and viola, out comes the bitter hull. A push of the button and it pops right out into your discard pile.
I doubt it would be effective on the small, ripe, local berries, I prefer, but on the standard supermarket ones, it works well, and leaves you with more edible berry than slicing off the tops. I had to use the knife to trim a few particularly large ones, but once I got the hang of it, the tool did the job.
Lest you scoff at yet another uni-tasker, I tried it this evening on some heirloom tomatoes, and it worked great on those as well.
The plump shape and bright color will make it easy to find in the drawer. It's a keeper.