I'd recommend not 'trusting' this person, since this is simply his personal experience rather than the typical experience. I've downloaded each and every beta for all versions, and it's been fun for me each time. That being said I'm a developer, and if I were a regular customer and expecting a first alpha or dev beta to be at the level of a final public release I'm sure I woudn't find it fun. Comparing the stability of these first betas compared to the initial iPhone betas it will pretty absurd. The initial iPhone versions will leaps and bounds behind these. Not even close. But with time memory fades which is why it's easy to think things were better than they were before.