I am indeed founder of Gumlet. Here are few reasons which makes it superior.

- cheaper pricing and no minimum monthly payments

- global image processing locations - ensures lowest latency regardless of location of your users

- no lock-in and wide variety of cloud storage support including DigitalOcean Spaces

- prompt support - less than 8 hour response time for all users

- GIF support

- especially compared to kraken, we charge only $0.1 per GB compared to their lowest pricing of $1 per GB

- strong enterprise focus - lot of features planned for enterprise support.