Yes, but only use it in place for SOME of the liquid. 
I made the mistake of using flavored creamer for ALL the liquid.......and then proceeded to make 2 more batches of icing to dilute it!
Ditto what Cake Diva said! I use it too when I make fondant and it is very tasty. I replace the full amount of water/milk and dont use vanilla.
DO YOU MEAN TRYING TO DILUTE THE FLAVOR...IT WAS THAT STRONG?
I drink my coffee black, but keep Int'l Del. Vanilla coffee creamer in the fridge at all times because I ALWAYS use it in my buttercream. I love the flavor it adds.
I've tried a ton of other flavors and they've worked well. Depends mostly on what you like best.
Jess
I use french vanilla cc for all my liquid AND add the normal amount of vanilla extract. It's not overpowering (to me) but has a nice, rich taste.
depends on the flavor you are using, vanilla is light but like cakediva said some flavors are just too strong. i mix my creamer with milk only because when i use full cream my icing seems too heavy... if that makes sense
I really like the coconut cream flavor, full strength
I've used the butterpecan creamer and really liked it with both spice cake and a german choc cake (where I wanted a white frosting).
There are so many flavors to choose from how can you go wrong.
this sounds good! So i canuse this when mking fondant too? wow 
Man..I wish we could get all those delicious flavors here.We only have French Vanilla,Southern Butterpecan,Irish cream but the Coconut and white chocolate raspberry sound delicious.
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