Many things. these few are the best

Profile Import : you can import your upwork profile ratings and feedbacks. it made me top rated on the first day.

Auto proposal: It sends proposal in the skills and budget you have selected, saves so much time in searching for the projects.

Commission: Upwork is ripping off since a long time. 20% commission is too much. upwork has to come up with new business model to lower the commission. they should learn something from Toogit as it runs on 8% commmission and there is no membership skill test shit to make money. Review collected by and hosted on G2.com.

Less projects. But every project is genuine. They don't have any fake, spam projects. Review collected by and hosted on G2.com.