I really wanted this product to work out for my daughter (age five). She loves taking the vitamins that have been prescribed by our pediatrician and she never had a problem taking the liquid vitamins that we administered to her when she was a baby. I know the value of DHA (I myself take a huge dose of fish oil daily), particularly for children's growing, malleable minds.
Unfortunately, though, these pills are odious. I'm not just relying on my daughter's assessment; I also tried a few pills. It's hard to put into words what the flavor was like, but if pressed I would say that they tasted like exceptionally old, dried fish that has been weakly masked by a cloying fake-cherry flavor. Also, I'm not speaking as someone who is biased against fish: I love fish and even secretly enjoy the salmon belches that my fish oil pills cause (I think of them as "bonus fish"). Honestly, though, these are beyond unpalatable, they are downright revolting.
I can't recommend another DHA product for your children -- I myself am still shopping around -- but I would urge you to avoid these vitamins. Chances are they will just end up in the rubbish bin.