eat protein, thats about all you need to know. Frankly the complexities of protein amino acid profiles is such that you can't possibly know what you will absorb. The very presence of other proteins in certain quantities effects how well you absorb and use other proteins.
You can take whey, and dump an extra 60% of one amino acid in, that doesn't mean your body will absorb or use it all.
The testing done suggests which profiles absorb the best and whey, is the undoubted winner by a country mile. Egg has a 100 score on the scale as its the best protein you normally find(unprocessed in any way), most meats are in the 80-60 range I believe, and things like soy, milk etc are below them with other things offering worse profiles that absorb less well. On the same scale, Whey, which will always have the rough same basic profile, scores a 140-150 on that same scale. Its the very balance of the profile that makes it absorbable, you cange the profile you change how well its absorbed, so realistically its entirely pointless changing the profile.
AS with all things, its incredibly hard if not impossible to quantify how much a specific protein might help you and the differences will be minimal, sometimes you take it on a week you simply had better energy, better sleep or ate better or grew enough muscle to make exercise X, Y and Z or cardio X, y or z seem easier that week. Likewise other people will be having a bad week, take some and think its garbage.
Stick with basic, cheap but decent whey and you can't go wrong, if you start spending money on every last possible helpful thing, well theres no end in sight as there will always be something someone thinks you need to be "perfect". 98% is good enough and a lot cheaper.
Less than 200kcals per serving of 46g of protein.
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Though never had any issues really.