Currently using Huel on a daily basis - tired Queal for some variety.
It tastes better than Huel and the fact that the flavouring is 'built in' rather than added as an extra works for me.
It's trickier to prepare than Huel though, the fact that more powder is required and the provided shaker is small, with a narrow neck meant more wastage with spilling the Queal.
I like the idea of the wire coil for the shaker which really does provide a smoother mix - in fact I've started using it for mixing Huel too.