I got this for christmas 2019. I use it ALOT! My fiance bought me the largest one because we have a family of four, it is giant! I find myself making more food than needed because especially with rice and potatoes it doesn't look like enough to feed everyone and I end up with leftovers. 
I wish it had a slow cooker option but that is its only downfall. I love the saute function has controls of low to high. I haven't used the yogurt function and probably won't. I can't wait to dehydrate some amazing apples this fall. 
The little cookbook has a quick guide in the back that has saved the day on numerous occasions too.
Also, it does take up ALOT of counterspace, which is sad but I store mine elsewhere until needed.