Bests & Worsts Reviews from Amazon

I've been an engineer all my life, and I expect better than this. Have a lot of trouble with this pencil, very disappointing, had hoped it was well engineered, premium product, etc, etc. So... what's wrong with a Rotring then? 1) in the pencil I received, the leads will not feed through from the reservoir to the writing tip. 2) The reservoir is recommended to only hold 3 leads 3) The leads are "non-standard" in that they are 10mm shorter than those used in all other mechanical pencils worldwide. That's a problem since in mechanical pencils you can never use the last 15mm section of each lead anyway. Make the lead shorter and you're much more frequently having to switch to the next lead. 4) The retracting sleve around the lead is too stiff to retract while you write/draw, it doesn't slide back at all under pressure from the paper 5) There is no clean-out wire provided with the pencil (yes really!) 6) The insides are all plastic, despite the shell being a lovely solid piece of metal and having a very nice feel in your hand 7) The insides cannot be disassembled sufficiently to clean them out. The most you can do is unscrew the writing tip from the rest of the barrel, after that its a game of pushing long thin clean-out wire (not included) through 8cm of pencil barrel in the vain hope of success...