Tank is a phenomenal design agency that strives to produce top notch content for their clients. Other than design, they help brands with strategy, user experience, marketing, and as well as content production. The overall impression I get from Tank is that it's smooth and extremely usar friendly.
"Tank’s creative approach operates on the belief that good ideas and solutions aren’t simply embellished by design — rather that design is a process and discipline that can be deployed to discover great ideas and solve complex problems." -Tank