I have a regular blender and a bullet style blender. I feel that the bullet style is a lot better for milkshakes and smoothies. The regular blender only seems to get the bottom half of whatever I'm blending. The bullet style blender will fully blend everything. The bullet blender seems to take less time, too. I have small and large cups for my bullet blender, so I don't even have to pour my healthy shamrock shake into a new cup. This means fewer dishes to wash.