Digging up this old thread as I've now had a chance to have a little play with one, courtesy of Badwolf at the recent meet-up. Sadly I have to confess that I thought it was all a bit silly. As Dan said in the OP the tools clump horribly and the thing is a real fiddle to put together. The tools themselves are just too small to be of any real use IMO, though I will admit that I didn't actually try using any of them so I could be being unfair.Without wanting to put words in other people's mouths, I think I can safely say the the group conclusion was a pretty resounding; NO!
Yes, more an oddity and a collector piece than anything else.
Stuck in a log here, I've just noticed that one tool component doesn't have a back stop, so the tool opens to far, I'll check the other components to see if any more are like it