I should finish my first bag tomorrow (as it states 14 portions of 3 scoops). I'll have a fair bit left over, so I may have to do a 'generous' 3 scoops from now.
Also ordered the flavour boosts with my second order, so may try them in the vanilla flavour.
Oddly, my colleague says he prefers the taste of the vanilla with chocolate boost, as opposed to the straight chocolate. Haven't started my chocolate bag yet so I'll be intrigued to see the difference.
Still no complaints from me. So easy and cheap to use. Saves faffing about preparing something the evening before if I get back home late.