Personally I like BestMarks's assignments because they're easy to understand and execute. The directions are well written. But the reports kinda strike me as a pita for some reason. I don't know why I feel that way exactly. I think it's because there's usually several detailed questions on several different departments or steps to completing each assignment, and then there's naritive to "explain your answers" after every 3-10 questions.
It also almost always seems as though they're lumping 2 assignments together for each shop. The web/ call component has quite a lot of questions, and then of course there's the actual visit.
Same kinda thing on their electronic retail shops... Either an order online component, or detailed interactions with 2 departments... Basically strikes me as $14 for 2 assignments that are similar to the $9 cell phone shops other companies have.. With a little more naritive.
None of it is hard. I have never had a report rejected or questioned. But I think the pay is low for the amount of time and work put into it.