AppEngine is a somewhat clunky experience because of the walled garden nature it presents.  For example, you can&#x27;t write to a local filesystem in the way that you normally would, no listen sockets, etc.<p>And, while I don&#x27;t have as drastic an opinion as others, there are operational issues.  The most recent one was mysteriously disappearing outbound emails.  These are worse than they should be, because there&#x27;s no real way to escalate and get someone&#x27;s attention, even if you&#x27;re willing to pay for it.  The support model is not the same as for the newer Cloud services.