Having worked with them in the past (when Patrick was a newly "on paper" millionaire and not a widely known billionaire visionary), I feel the same way.
They're smart, sure, and have great ideas and execution, sure, but they're also just really, really great people, and fun guys to hang out with.
The one thing that stands out for me - and this goes for both brothers - is their modesty. There are a lot of people thumping their chests all day long about very minor achievements and these guys just plug away at what underpins a very large fraction of all e-commerce. Stripe one day will be really too big to fail.
