Got my iStick yesterday, man is this thing tiny!

It looks nicely made but.... the 510 hole was drilled and tapped at a slight angle, when I screwed my fogger or dripper on it's tilted and there is a gap on one side at the bottom, this doesn't effect function but it's annoying. The micro usb charge connector does not line up with the hole milled in the base, because of this I couldn't use the cable that was sent with it, I have three others and found one that will fit but it's a very tight fit. So tight I'm worried either the cable end or the port connector might break eventually so that's something I'll have to fix by taking it apart. The instruction manual is useless so I went to their website only to find the same manual online, I had to watch youtube videos to figure out how it works and that's just not right. I still don't know what the amp limit is for charging, I'd like to use one of my bigger amp fast chargers but don't want to damage it so I'll have to slow charge off my computer to be safe.
Other then those issues I really like it, fit's nicely in my hand, it's stealthy for use in the public and should last a long time between charges. I used it for six hours yesterday on clearo's, the fogger and the plume and last night the battery icon finally came off full charge by one tiny notch. I got this one from Central Vapors for $22 shipped during the Black Friday sale and they threw in a free charge cable due to the over sales and wait time which makes up for the downfalls, would I pay $35 for one? No! Not until they have better quality control and supply a user manual that actually tells you how to use it.