so the lab we work in got a really nice JBC soldering iron yesterday and holy crap is it nice to work with
the cheap weller one we had before doesn't even begin to compare
we can change tips without having to wait for it to cool down, it provides a _ton_ of heat to easily solder to big ground planes (it can solder a massive 150-amp rated tab to a super-thick double-sided 4oz copper plane with only a minimum of trouble), and it has really nice specialty tips
I wish JBC irons were more affordable though, they're excellent to work with and if they weren't so expensive i'd definitely be recommending them to everyone who needs a soldering iron but the fact stands that they're Really Expensive and a hakko fx-888d is good enough and a fraction of the cost