I like Isopure, but it makes you feel bloated. For me it takes a couple hours to digest, and I don't enjoy the burping by the way. Specially when taking strawberry. Though I found something interesting, take the Isopure and eat a banana, you'll notice the burps aren't that discomforting.
I do not recommend you take it with milk. It'll feel like your stomach is about to explode, very heavy. Don't buy Strawberry (I also have SB flavor and need to finish it quick), it tastes nasty, get chocolate.