I have a Vitamix and it works extremely well. Blends anything I've tried so far, no problems. And it blends stuff that a regular blender couldn't mix well enough and you would get separation after pouring. Like solid coconut oil and frozen fruits.
Pricey, but it's basically a commercial grade machine, so it should last forever with home use.
Pricey, but it's basically a commercial grade machine, so it should last forever with home use.