Pros
I've been very pleasantly surprised with my time at DataAnnotation Tech. You can work when you want, take on as much work as you want to and there's a good variety of work and some interesting projects to work on. Work related to specialised knowledge is also available. There are Good pay rates (some rates are excellent for specialised projects), and you are always paid promptly! There is also good support from colleagues and admin over various issues. Overall a very good experience for extra income, interesting work, and for gaining insight and contributing to the AI revolution!
Kontras
This is hourly-based task work. The pay is very good, as is the support from admin and colleagues, but as with all such platforms there is no real guarantee of work, although there does always seem to be a lot of work available!