Exchange Server 2013

I've installed Exchange 2013 but first... let me tell you set up the story...
in my organization we had Exchange 2010 for some years now and i was experiencing some bugs in the search in my language Portuguese characters"~" "ç" "ã" and so fort.. i upgraded to exchange 2010 sp3 and it got REALLY worst.. the receipt starting to change from "lido" to "ler" and the search was unreliable in Portuguese .. 5 days latter the server went nuts... and the ibm storage could not handle it.. it was bought in 2008...
had to tape it and restore from tape and problems got much worse so i had to install exchange 2013 and let me tell it has no words that i can write in this blog that would not be immediately censored it has been 2 weeks and i've experienced:
cant send mails from one mailbox to another in the same org...
the connectors are too much...
windows xp and office 2010 are not compatible with 2013 period...
different forest office could not communicate ex: domainxpto1 and domainxpt02 outlook 2010 and 2013 could not communicate to the exchange 2013.
could not receive emails from a different sever"spam appliance"
could not send emails
it moves only ONE mail at a time and then goes to another mailbox and ONE mail etc...
etc...
WORST EXCHANGE EVER
exchange 2013 does not have a console and a GUI it as FUI "failed user interface" and the queue viewer does not offer much improvement.
had to enable logs
you cant have external dns enabled...
you cannot and repeat cannot disable ipv6 dont exchange 2013 relies ONLY on ipv6 for communications
exchange 4.5 was horrid but i at least it worked...