No, I've never tried these. I just clicked around a bit on the site. I've seen the Blue Apron ones before and I was always underwhelmed on the quantity, but maybe it's just because they didn't focus on gaining.

Do you use weight gainers also? I've had great luck with them for time and convenience reasons. Example: https://www.amazon.com/Optimum-Nutrition-Standard-Gainer-Cinnamon/dp/B01LCC1A0S

I'm interested to hear about how well the meal plans work, especially compared to take out.