The only perk I might miss a bit is the 2 level room upgrade at new hotels, and indeed more often being give many more than 2 levels. At the SG IC I always got 3 levels, although I've confirmed they'll give me this regardless as I negotiate my team's corporate rate for 200+ nights.
A club manager at one IC told me he reckoned the same, that RA and A are for the chop.