Question about Beef Protien isolate

[Alias]

I ordered up a mix of protein from true protien and I must say I was very impressed by thier custom mixes option. I had a great time making my mix up. I did go cheap and got mostly Whey concentrate and the coconut cream is great tasting, I mean I really enjoyed drinking it.

But anyway, Beef protien....Any good? do you guys use it? What are the benifits to it verses the usual Whey, Egg, casien, or soy that I'm used to? I just never really come across it where I shop (other then the meat department).

thanks