Free! was alright. I actually think the idea of the story was great but it wasn't expressed that well in my opinion.
The art was amazing! This was one of the reasons I started watching it. I saw the art style while I was browsing some anime so I checked it out.
The characters were okay but they barely met my expectations. There wasn't enough character development based on what all of them had gone through.
The fan service...well, this was a problem. It took so much away from the anime and really made me upset. It would've easily been a wonderful anime that almost everyone loved if it weren't for the fan service.
I gave this an overall 6 because the only big problem I had was the overly excessive fan service.