the named problems were just examples though... there are sadly others.
* Right-click isnt implemented.
* Switching to their embedded DNS service pushes your whois information to the whole web (pretty much every other dns service hides it behind anonymized contact information)
* adding external mail servers (i.e. fetching mails from old gmail or hotmail.com account) constantly gets you 'the target mail server was unresponsive' messages. Its good that they're warning about incorrect information, but it does get old if it happens only once every few days on one refresh.
... and there are so many more examples