I was happy with IC as an AMB. Then they made me RA. RA for two years - very happy. Now I'm totally spoiled and have NOT qualified for RA, so back to vanilla AMB.
What I'm afraid of that the same AMB treatment I was happy with 3 years ago won't feel the same... especially the 8 am checkin and nearly universal free club access* will be missed.
(I still have 6 months of RA staying under my wife's RA but that's the most I can still wring out of it)
* at least at the places I frequent.