Hi, you do absolutely get all the content that is provided in CC!
Even the Survival Mod works fine, giving you all the effects. If you plan to use that, I recommend
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for backward compatibility and fixes!
My point is that there is no reason to get an AE Skyrim build. The "stability" is the same, and it always depends on how good you are at modding Skyrim. The fps you get is the same, some mods will never be converted to AE and since Skyrim will slowly lose its players and modders base, SE to AE conversion/replacement mods will become less possible.
Every meaningfull 1.6+ mod gets converted back to 1.5. For example, the "AE exclusive" Knotwork mod was released on Sep 13, requiring 1.6.1130+ DLL only avaiable on AE. Guess how much time it took to get it converted to SE? A single day.
So what is the actuall point of using AE, unless it makes Bethesda feel like they can bullshit their fans like that?