Got my tricorder in today. I love it and at the same time find so many minor flaws... Aside from the batteries shelf life ending last year and some weirdness with the pain on the top front and a scratch on the door that's rather deep and stares you in the face before you open it; one of the hinges is loose and gives the impression the door could fall off if stored open on the stand as suggested.
I don't think all then LEDs needed to be so extremely bright. They make text in some places ... I'd say unreadable but you can't tell its there. The lights shine right through the stickers throughout lending to a slightly cheesy feel and its especially funny looking in places with a rectangle to shine through and a same shaped but much larger LED behind it.
I was amazed at how heavy it is, all metal. Except the back panel battery cover. Feels kind if awkward. Screw's Philips heads look over worked.
Still, aside from the hinge the main thing I'd change is the speaker. The sound effects are really strained, seems kind of cheap.
Don't quite know what to make of the holster.
All this though coming from someone who thinks $556 total is a very large sum.