Glad to see I am not alone. Long time Exchange admin. Loved the product until 2010.
85% of the mailboxes I look after are not going to the cloud in the "foreseeable future". 15% are already there, and will stay there.
Exchange 2013 OWA / ECP / Spam are my main issues. Update quality also.
In general : Web interfaces are inevitably inferior to multi-gigabit LAN interfaces.
For the Exchange team and Microsoft senior management - you can get us to pay for software assurance, but your cloud offering is as far from convincing as Exchange 4.0 was when I first used it. Keep us onboard and remember that there is a world outside the USA. (most of it)
Server 2012 R2 is a GREAT product. Support it. System Center 2012 R2 is crappy but improving. Why is Exchange sliding downhill?
Probably because the senior management have decide to push the flagships over the brink first in the hope that the customers will follow. We won't unless we are convinced. Windows 8.1 team watch my lips.