So just came back from watching this.
I went in with an open mind. It wasnt going to be the exact Turtles we all loved in the 90's. The movie was pretty good IMO. The Turtles of course have a more aggressive look and all four actually have different distinct looks which I really liked.
Leonardo - The Leader
Raphael - The badass who is the most muscular out of all four.
Donatello - The nerd/smart one. The more slender out of all four.
Michelago - The goofy/ funny one. The shortest out of all four.
Only gripe was I really didn't buy into Meagon Fox as April o'Neil. Her acting is horrible. Splinter is an actual bad ass this time around instead of a old crippled rat. Dude has moves. The back story of the Turtles was a bit different too but wasn't a horrible route. The fighting scenes and the overall look of the movie was pretty awesome. I was most worried that Mikey wasn't going to be funny enough and Raphael wasn't going to be a big enough badass and they managed to pull both off. Mikey was the same ole likable goofy one.
Like I said, if you go in thinking it was going to stick to EXACTLY what we remember in the 90's, you will be disappointed. Its a new era TMNT. They have some of the old that we remember and a whole lot of new that you have to take in.
Go see it dudes.