Like many other reviewesr, I had my reservations about this series, not being particularly fond of some of the redesigns (Master Splinter is completely unrecognizable here) and the changes made to the plot and the characters.
After watching some of the episodes my impressions were more positive, mostly thanks to the good animation this series had, with an effective characterization. (The personalities of the characters are very different to their usual portrayal from the comic and the previous series, but the new characterization isn't necessarily bad, just different.)
If you are expecting to see a serious (Or at least, a semi-serious) version of the Teenage Mutant Ninja Turtles, than you are going to be dissapointed by this series. I personally think this is more enjoyable as its own thing rather than as an adaptation.
After watching some of the episodes my impressions were more positive, mostly thanks to the good animation this series had, with an effective characterization. (The personalities of the characters are very different to their usual portrayal from the comic and the previous series, but the new characterization isn't necessarily bad, just different.)
If you are expecting to see a serious (Or at least, a semi-serious) version of the Teenage Mutant Ninja Turtles, than you are going to be dissapointed by this series. I personally think this is more enjoyable as its own thing rather than as an adaptation.