Tripods make such a difference to so many situations in photography that you always wish you had one with you, but hardly ever do. Even a tiny one like the original segmented Gorillapod (which I also have) can seem like too much trouble to use.
That's where the Micro 250 comes in. It really is small enough to leave attached to your camera. And you can flick it open in a second when you need it. Yet it's still stable and adjustable. Seems perfect. And it's not far off to be honest.
When folded to its smallest size, on my Sony RX100 it doesn't protrude at either end of the camera, or from the sides. And it lies fairly flat underneath the camera too - enough that it still goes easily in quite a snug camera case while attached.
Being made of metal it does add a little bit of weight to your camera, but nothing worth mentioning really.
I found the coin-twist screw that attaches it to your tripod slightly awkward. And even if you screw it on tightly, it soon comes unscrewed. That's annoying because you have to spin the legs to fold it up. Twirling it around the other way sorts things out, but you have to do it quite often.
Opening the tripod for use takes just a flick of the finger. The legs don't fold like on a regular tripod - one leg stays fixed and the other two spin in a circle and lock into position. It's neat and very quick. Once open there's not much adjustment up and down, but there's enough to point the camera at what you want, and it's far better than relying on a nearby wall, which will hardly ever by chance point the camera at what you're photographing.
When open, the tripod feels very solid. There are rubber tips on the legs for grip on slippery or tilted surfaces.
All in all, though it's a tiny bit more expensive than I'd like, the solid construction and tiny size count in its favour. And it's the first usable tripod I've seen that you can leave permanently on your camera.