Picked this up yesterday. We've really been spoiled with some killer Scout class cars in the last year odd (Breakdown and Hubcap as well as this). Aside from the head and the shins the robot mode is kind of generic, but not really in a bad way. I mean to convey that the robot mode doesn't really scream Windcharger aside from these features (meaning it could easily be used for another character). Articulation is great, colours are great (there's red, two shades of grey, black and silver in play). Minor gripe, the top of the car and half the bonnet just sort of hangs off his back in a solid chunk. It's not pretty but its hardly a deal breaker.
Car mode is decent. That's it really. The silver headlight paint is kind of iffy (I had to dig through a few at my local K mart before finding a bunch that I was happy with). The back end is kind of a mess - your mileage will vary on whether you can get it to clip together properly and the 'toes' that are meant to form part of the roof aren't the greatest. Even if you can get them to line up properly they'll recess down into the body of the car if you play with it a bit. The lack of painted tail lights is an annoyance (unlike on Breakdown)
Overall this is second to RotF Breakdown (which has as good a robot mode, and a better executed car mode in that it holds together much better and has better paint), but still worth a buy.