I would expect a blender this pricey with an 1800 watt motor to be able to handle a lot! My Nutribullet handled my shakes better. No smell or burning out warning saying it was "overloaded." I am very wary of this blender as I've had 2 other "refurbished" models that burned out really fast with just a few frozen strawberries and brocolli! 

This has already warned me of "overload" and has an electrical burn smell just by doing a regular shake cycle. What is that all about??

I am thinking I made a mistake and need to get a blender that has no problem handling a few frozen berries and veggies. This one is unexpectedly cheap and buggy.