My (entirely subjective) answer is that it's noticeably better. I upgraded last year from 7200.2 to 7200SE - the twitter and associated electronics are definitely better. Much clearer at the higher end. And the sense of space is much better - more lifelike. However, I wouldn't regret if I were you - 7200s are awesome. I have lived with them for many years now.

PS - If you really want the upgrade try asking your dealer if they can ask HQ if they can make an exception. Just might work!

Sources: Roon Nucleus, Oppo BDP-103, AppleTV, Processor: Meridian 808.3 , Speakers: DSP7200SE, Projector: SIM2 Lumis, Stewart 140" Custom Filmscreen