It's more what is for you, if you like or dislike something hun rather than worth it. I dnt try to make too much so I make enough off UT and just the website WUD ones so I do not bother anymore but if someone finds their network holds and the software does not crash then its worth it. I enjoy doing most of themYour call, they do add up but I find the system fails too much for me. Usertesting is the same thing but different company and pays better but pays in dollars but theirs are $10 a phone test and computer one and $15 for a one using a sep camera they send you. I am registered with both and only do computer ones on WUD since they went to £5 as the software glitches for me but compared to surveys yes good money. But faffy and takes time to get used to setting up.