There is smoothie jar problem on my PRO1200 Plus Blender. I do not think the smoothie jar is sanitary due to a crevice that is somehow open to the jar contents. The smoothie jar crevice is not accessible to clean. Oster sent me a new smoothie jar but the problem is the same on the second jar. See smoothie jar picture and note the brown area beneath the threads. This powerful blender works well with the glass jar. I like the easy to use well thought out controls and the reversing action. I'm told this model is not offered without the smoothie jar. [This review was collected as part of a promotion.]