It crashes predictably in certain situations. It is quite clear there is a problem with OS 2.0 update or the browser. With splashtop HD the problem is much worse, often the browser won't even load if multiple applications are running/open. Once the browser begins to crash, the only way to get it back is by rebooting.
My experience with desktop browser is different. It's generally far more stable and I use mostly Chrome. Actually I don't close my browser for weeks on desktop, so I'd say it doesn't crash for weeks while PB's browser crashes almost daily, unless that's the only application I'm running.