This is a good set to pick up for many reasons, such as:

-Minifigs-

Batman: He's fine. Same as other sets.

Robin: Looks good. He also comes in the batcave, so this is the easiest way to get him.

Mr. Freeze: Looks amazing! Very reminiscent of the very first Mr. Freeze minifig.

-Parts-

It has some good parts. The wings on the back would be good for making a small batmobile. The snowmobile comes with a cool trans-light blue slope with glitter in it. It also comes with the piece pack containing hooks, grenades, and other things.

-The build-

The build process is fine, but if it is broken, careful not to mix up the two sides when rebuilding.

-Completed model-

This model is great for play. The bike can split into two bikes as the main play feature. The back can shoot off a harpoon and the front can shoot off a grenade. The snowmobile isn't very interesting, but I do like the slope and the spoiler pieces in a new(?) color.

-Value-

I can see this being $20, maybe $25. Well luckily, it's $20! That seems like a good price for the volume of stuff you get.

-Overall opinion-

This is a good set that gives you a good guy vehicle and a bad guy vehicle, which allows for exciting play. The play features don't take away from the model, and it seems like a good value for $20.

Well, that's all for my thoughts! I hope they helped you make a decision!