Their support is on point, quick turnarounds to any queries. Setup is fast with clear tutorials allowing multiple sites to all run on the service quickly.
Cancelling is a bit strange, you must go through a sort of ticket process to do so.
Try it for free to see if it helps your website, you can always cancel at any time.
Speeding up websites to better SEO scores and improve user experiences can been done quickly using MaxCDN.