I recently purchased the Kitchenaid High Performance Blender in black.  The blender feels very well made, durable, and heavy.  It feels more solid than other high priced blenders.  The green smoothies I have made so far come out smooth and velvety.  It does well with my mixed greens, chia seeds, flax meal, and fruit.  I recommend this blender if you have the space for a larger footprint, workhorse blender.