hi arkiboys,

I can't speak for SSIS or SSRS adjustements but, there are a couple articles posted recently by Brent Ozar Unlimited that will help you with determining if the upgrade is a good idea or not:

http://www.brentozar.com/archive/2015/03/why-you-shouldnt-upgrade-sql-server/

http://www.brentozar.com/archive/2015/03/upgrading-to-sql-server-2014-frequently-asked-questions/

best,