I attempted to use it twice and here is what I don't like about it: They give you NO idea whatsoever of how many people are available through the service, what kind of expertise they have or if/when anyone even will be available. Worse than that is when you submit a request, they don't send you any status updates or anything until you get an email that says "It looks like no experts were available" ask you what time YOU are available instead of letting you know when a fucking expert will be on! They also give you zero clue as to what kind of prices you should expect. Is "$2 a minute" going to attract anyone? How about $3? I don't know!
In summary, I think Hackhands is probably one of the worse services that I've ever wasted my time trying to use.