I actually own a personal blender from another manufacturer that is considered one of the best, but I was intrigued by the portable aspect of this one.  I've only used it for fruit smoothies thus far, but it's just as good as my tabletop version and I absolutely love it!  The capacity is plenty big and even though the blade looks small, it does a great job blending.  I've used it several times so far with a single charge. I have to admit that I didn't follow directions when incorporating frozen fruits by not using small pieces, but full-sized strawberries blended up just fine (in future, I'll buy slices, since I don't want to take a chance of burning out the motor!).  I think these would also be great for folks who bring their protein drinks to the gym or those who use powder diet drinks on the go.  I'm looking forward to trying out some of the included recipes for sauces, too.  Highly recommend!