I'm eating mostly paleo (and definitely gluten free) and I love my Vitamix. I haven't had it very long, just a few months. I bought the 300 series one (next gen) after doing tons of research on the features I wanted. Mine has a huge 64oz container which I love (and can fit under the counter wall cabinet) but at the same time if you're making tiny batches of something like 1cup it doesn't perform as well. Eventually I'll buy the smallest container also. The tamper is awesome to have by the way! I first wanted a Blendtec but after watching numerous video reviews the consensus was that sometimes you had to stop the Blendtec and scrape the sides or stir it whereas with the Vitamix you just use the tamper. The Vitamix gets the job done quicker also because you can push food into the blades...excellent for frozen fruits.
I just made homemade paleo mayonnaise! Sooo yummy.
It's amazing at purées...I do butternut squash most often and freeze in containers to use later which I make into butternut squash & leek "pasta" sauce (I use zucchini). I also made a cauliflower mash and it worked beautifully!
I made a cilantro lime dressing in it.
We make green smoothies with it...my husband uses it about 4x a week for that. I don't make many smoothies because they don't taste as good to me without yogurt (I use unsweetened toasted coconut almond milk) but he uses yogurt in his.
We did make the Grand Marnier slushies like the ones at Epcot which were amazing, but now I'm not eating refined sugar or drinking alcohol so booooo.
I made a batch of lemon ginger muffins from the Vitamix cookbook which were pretty good but I thought it was more difficult in the blender than mixing by hand! So, I guess I'm old fashioned in that sense. This was also before going gluten free. Lol
I want to make homemade nut butter but haven't tried yet.
Oh, I did make "ice cream" using only frozen bananas...the texture was spot on, just like froyo, but I didn't like the overwhelming banana taste, it was just too strong to me. I may have used overripe bananas though. I also made a sorbet of some kind (recipe in the cookbook, one of the berry ones) but again, too strong for me. It seems everyone else loves the sorbet and "ice cream" recipes though.