Tasty Shakes?

cdpm

I have been given a load of Maxitone goodies for Christmas including the shakes. Today I thought I would give them a go, just to taste and get used to the shaker, I have only tired the sculptress strawberry. I wasn't too impressed with the flavour as reviews of them seem to say they taste really good and I couldn't take more than a small sip as it wasn't pleasant!
I added a bit of skimmed milk which made the flavour a little more bearable, but not something I could drink the full amount of.
Does anyone know if it's okay to add milk or something else to improve the strawberry/chocolate flavour? Has anyone got used to these flavours after a while?