We received our much anticipated Four Side jar a few days ago, and have used it nearly every day to make smoothies. It works nearly flawlessly, and I say nearly only because if you add too much frozen and solid ingredients, it will fail to blend without tamping down the mixture. This has only happened twice, however, and with a quick tamp, a perfectly blended concoction emerged!! Love this blender, an this Four Side jar!!
I bought the Fourside to use for my everyday grind....lol. I have a Wildside that I use for my smoothies and juices. The Fourside is for the rougher and seasoning jobs. The Fourside does a great job and am very happy with it.
We bought the four sided jar when we bought our blend Tec. It was fantastic, used EVERY day for smoothies and sauces. When the motor went blendtec replaced it with out any problems. Now we are back to using our blendtec daily!