I used a Boppy with my first three children, and wanted to try this one out with my fourth. I'm now using both this one and the Boppy, depending on what I'm doing, where I am, etc. I will say that I like both nursing pillows, but in different ways. This one has great back support if where you're nursing the baby at the time doesn't provide it (though it's still nice even if you're in a chair that has good support), it allows you to get up and move around while nursing the baby (a definite bonus if you've got more than one child), offer good support for a nursing baby, and has a handy pocket hanging off the front to stash small things in if you need to. The cover is also relatively easy to get on and off if you need to do so to wash it, though I wouldn't say it's any easier than the Boppy with a cover - neither really has a major advantage over the other in this category. The primary disadvantage the My Brest Friend has compared to the Boppy is that it doesn't work nearly as well if it's unbuckled, so you have to take the time to buckle it before you can start nursing the baby, which can potentially be a hassle if you have a baby that's firmly convinced he or she must eat NOW. I will also say that sometimes the little bumps on the pillow that appear to be designed to help position the baby's head can sometimes be annoying if you don't have the pillow positioned exactly right, though that's really just a minor annoyance at times.
I still like my old Boppys at times as well, since they are easier to throw on and sit down with quickly, but it does prevent you from being able to get up and move around, since standing up pretty much just causes the Boppy to fall off, and because it doesn't buckle on, it has the possibility to being harder to get everyone positioned just right for nursing - the fact that the My Brest Friend attaches to you means you can move it up higher more easily than the Boppy. The My Brest Friend definitely has some nice features that the Boppy doesn't have. If I could have given this four and a half stars I would have, as the only reason I would take off half a star is the hassle of having to get it fastened to work well. Ultimately, if you can do so, it would probably be best to try on different nursing pillows and see what works best for you, since the best pillow is going to be the one that helps you nurse your baby the easiest. But this is definitely one I would suggest trying out if you can do so - it's a very nice, well done product!