This seller is absolutely insane—in the best way possible.
His feedback and explanations are lightning fast.
Unlike some other sellers who say things like ‘go watch YouTube’ or ‘go study first’ in a rude tone, this person answers even the most basic questions with sincere effort and kindness.
He even cheerfully accept requests for additional features(which is freaking awesome).
The updates come at an incredibly fast pace. SF4 already? It’s been a while since I’ve seen such a hardworking developer—haha. 
Honestly, I’m starting to worry about his health.
Hands down, this is the best framework in the world.