[blunte]

I won't go into details, but I moved my personal and business activities (including 8 domains) away from PM after using their top tier service for a year. Let's just say that performance and usability in moderately heavy business use was not acceptable.

And keep in mind that even though your email is encrypted within PM, it is not encrypted on the mail servers of the people you have been communicating with (unless they are also PM accounts). So the primary attraction is largely moot.

I hope they catch up in the areas I think they need improvement, but providing Gmail level service is quite difficult unless you're big and well funded.