I looked at nutribullet but bought the Cuisinart sb3 soup maker in the end. It makes great smoothies, crushes ice, cook soup to perfection-better than any I've ever tasted and it cleans itself. It makes a little or a lot, which is another reason why I went for it due to me having to eat more liquid foods so needed larger quantities for me and hubby.
I generally make a big smoothie that lasts two days and makes 6 200ml glasses. I stuff everything in them. I drink two a day and hubby one so saves me having to do it every day...
Soup makes 6 small bowls or 4 large yogurt size containers. The fact it salutes the veg and cooks so effortlessly to me is priceless.
Then, well, as mentioned it cleans itself. Just 500ml of water, a splash of washing up liquid and two minutes heat and blend and it's clean. Repeat with clean water and done. No messing washing and drying.
It's the best kitchen gadget I have ever had. It gets used constantly and is perfect size for keeping out all the time.
Just remember to get some spare yogurt pots or 6 good size glasses etc for storing in fridge, there's good soup BPS free soup containers available in QD stores for 99p compared to Tesco's which are £4.50 for the same.
Are they filling.... Oh yes. I add 4 scoops of protein powder in to mine now when I make 4 or 6 glasses of smoothies just to ensure I get enough protein each day.
I've not had a nutribullet but the size and qty, soup cooking as well and self cleaning was the reason why I opted for the SB3 Cuisinart.