I bought my A2500 Vitamix and I am so happy I did.  
The tamper comes in handy to push my frozen kale veggies down.  My kale shake comes out smoothe. The Vitamix is  so easy to clean with one drop of soap and fill blender halfway with water and run for 30 seconds.  it came with a 10 year warranty.   It’s perfect !!!   I would highly recommend Vitamix,