I admit I haven't had too much experience with Queal yet - just the Taste Tester package. However, as a newcomer to soylents, I've been very pleased with it so far! I haven't had digestive issues, not feeling full, or any other negative physical reactions (at least not that I'm aware of ;-) ).
I'm not going to give a full review now, but I can wholeheartedly recommend trying out Queal. Also, I'm going to order some WundrBars now. :)