I've been using meal replacement shakes for nearly 10 years now. Initially oats+whey, then Huel, now Jimmy Joy plenny shake actives for the past year or so. Jimmy Joy is the best I've had by far. The difference in taste and consistency is immediately noticeable. It's easy, and still tastes pleasant, to make shakes up to 1000kcals in the larger shaker. I reccomend JJ to anyone who uses these sorts of products as I think it's genuinely the best one. I also really struggled with mouth ulcers, probably due to Huel, and they've more or less settled now. The only slight negative is the delivery times can be a bit long as I think they ship out of the Netherlands (I'm UK based) but with a subscription and overlap I've never had a problem.