I think it ultimately depends on the circle of people and what kind of cuisine they have normally. I think Soylent tastes quite mediocre- but my favorite foods are curries and vinegar/chili oil sauces. (Sad to say I often have meal replacements as punishment food.)

I would definitely try this saag as a service(alas, I live in NYC), as a healthy alternative to food I already love eating. Meal replacements are definitely not covering that niche for me.