Ok, here goes:
At this time, I will only be discussing the P4O in Oats; although, I have had it one time in cream of wheat.
I had a picture to post, but the app says the forum has disallowed that function.
Anyway, I will be actively comparing this flavor to the Quaker Instant Apples + Cinnamon that it is based on. I used this in instant oats, which PES does not recommend, but it is the only way I eat oats.
Firstly, this tastes absolutely nothing like the Quaker flavor. Anyone that says otherwise has not had the Quaker oats in a long enough time to remember what it tastes like.
Taste: the powder has an overwhelming cinnamon aroma and the flavor is nearly all cinnamon. I cannot think of a single time that I tasted anything more than the faintest hint of apple, and most times I didn't even get that. This is not necessarily a bad thing, if you are a fan of cinnamon, but do not buy this expecting much apple flavor (if any at all).
Texture: blended easily into the oats without any powder clumps to bite into. It did make the oats a little "sludge"-like, but it wasn't unpleasant.
Ease: as mentioned, it blended easily with a spoon in the cooked oats. I found that anything more than 1/8 of a cup per packet was overwhelmingly strong. 1/4 of a cup is usable in 2 packets, for anyone that uses instant packets.
Value: honestly, not sure about this. I don't generally eat proats, so I can't say this is a huge improvement in my proat situation. I am not sure the cost adds up as far as cost per serving compared to other protein powders. The flavor for this one is not great for me. I would have liked more apple than cinnamon.
To be frank, I expected this to be my least favorite flavor, which is why I requested it. If you are a huge fan of cinnamon flavor, then you will probably enjoy this.