The best thing I like about grabjobs was that it helped me in my career transition from freelancing as an entrepreneur, so now when i have some free hours or am able to spare for few days during weekends; this became one such website which really motivates you towards your work! Nothing because there isn't anything we dislike yet but if someone wants something new then they can always try out other similar websites too!! It's been great experience with them till date until not very long ago where their support team has left us without any explanation at all (which made our life miserable).
So please do check whether everything works fine before proceeding further? You will be surprised how much effective things get done through using these tools/websites.