ProSupps new Whey is fantastic. I have had all the flavors. I will also vouch for their HydroBCAA as they killed the flavoring. IMO ProSupps is a company like Rule 1 who does not get enough recognition for their products.
Mixability - Think MTS Whey or PES Select, not as thick as both of these but right on part with how easy it mixes with ease. Makes a decently thick shake.
Chocolate Milkshake - Its a mix of a rich milk chocolate and swiss chocolate. The density of the chocolate is very good
Birthday Cake - Some Birthday Cakes are like glorified vanillas you actually get a nice cake batter presence in the initial flavoring and long lasting after taste. The sweetness is just right (not overbearing) to make it enjoyable.
Vanilla - Not a top tier vanilla, but I would put it middle of the road. It will be hard to top PES & Blue Star Iso-Smooth as top tier Vanilla’s on the market.
Cookies & Cream - This is another good flavor (but doesn’t touch Beverly which is the GOAT of Cookies & Cream) or the old school protogen flavoring. You do get a strong cookie vibe and sweet cream aftertaste (like the filling of an oreo)