I really wanted to get the Brest Friend when I heard that it was coming out just because it appeared there would be more fabric selection than the EZ 2 Nurse. My girls came about a month before the Brest Friend was available though, so I bought the EZ. I've been really happy with it and now that I have it I don't know if I'd spend the extra $ for the Brest Friend.
I don't have experience with either yet, but I bought the EZ 2 Nurse because just couldn't justify the extra $30 -- there is no information that tells you why the other one is better.
Re: Twin nursing pillow
I really wanted to get the Brest Friend when I heard that it was coming out just because it appeared there would be more fabric selection than the EZ 2 Nurse. My girls came about a month before the Brest Friend was available though, so I bought the EZ. I've been really happy with it and now that I have it I don't know if I'd spend the extra $ for the Brest Friend.