Just sharing my experiences thus far. I know James and Julian have reiterated many times that the target demographic isn't bodybuilders or those undertaking rigorous training but the blend is simply too good to not use it for the purposes of supplementation.
I am consuming 4 shakes of Huel per day, on-top of a pre-existing daily caloric surplus, I am 30 years-old with around 13 years of training experience, looking forward to the new year with some lifting meets in mind. The reasons behind my supplementation with Huel is that I simply do not have the time to prep these days, Huel is an ideal solution as my relationship with food is basically as a fuel source and the objective is to get it down me as fast as possible.
I have spent 3 days thus far on Huel and I'm already feeling "full", my first weekday session went without incident, heavy "push" and tomorrow will be predominantly "pull" with back/biceps. The shake itself can mix a little bit thick but aside from that it tastes pleasant enough and goes down well.
I will be keeping this updated with general feelings, any increases in strength/mood and general feedback for the team, I also hope that my experience and objectives mirror those of some of the other users who are still on the fence.