I have used Isopure Grape flavored protein drink. I like it. Many people complain about an after taste. However, I found that to be a non-issue.
I have also used Premier Protein shakes both vanilla and chocolate. These can be picked up at Costco by the case. You can also find them at most Rx stores. I have never used the whey powder mixes myself.
So go out and try a few of these shakes. Yes, you should be able to buy them in small quantity and then decide if you like them.
I order my Isopure by the case. I haven't been using my premier shakes of late. I am getting plenty of protein now from foods. However, in the early go Premier had 30 grams of protein in it and I found them to be quite tasty.
Ralph