Blenders have a big impact on how a recipe turns out. Texture honestly makes a smoothie delicious or yucky. I have used a ninja blender and a Vitamix blender so I can speak to these. I found when I used a ninja blender (keep in mind this was in 2020 the quality may be different now) it didn't fully blend blackberry seeds. When I blend frozen fruit, any tiny seeds, or raw nuts in my Vitamix it comes out perfectly smooth. Therefore I love and will always recommend Vitamix. Here's the one I have, and use it every single day. High-power blenders can do amazing things these days and if you are keen to make healthy food this is one of the first things I recommend investing in!