Well...
What I like about iWriter
1. This is good for beginner writers to learn the kinks of article writing. Doing 500 word articles for 2.43 may seem bad, but it teaches you the lesson of "Work". If you can't make a good article for 2.43, then you need to read some books and stuff to help you out.
2. Finding work is easy. You can just click there and find a article to get the typing on. Your clients are basically right there.
3. It hardens your heart as a writer. So far I've gotten two bad reviews. Although I had created the articles, they were not happy with it. There are some clients that are going to be assholes and there are some that are going to be nice to you. But overall, it helps make your writing improve.
What I hate about iWriter
1. $20 dollar deposit. So for beginner writers, this means you're going to have to write 9 500 word articles in order to actually get paid. And since you are new to writing, you never know if your client will actually give you the money.
2. Too much client power. While this site is good for writers, they cater to the clients too much. Why so? Because they can get writers from anywhere to do the same article you are doing. Your only resource is your writing mind and to talk to the client to kiss-up. I honestly would prefer to use iWriter if I was looking for writers.
But to be honest, I think the skills you learn while taking up a site like iWriter is better than the money. You understand that you need to promote yourself in the best way to the clients. Even if your writing is not in tip-top performance, you learn how to market yourself. And if you are able to learn that skill, then you will be able to learn how to gain more clients in that way.
Go do it. Writing is a skill that you can keep for life, so why not learn a skill while getting paid for practicing it? If your writing gets rejected (Like mines so far) then it's okay. Take it on the chin and fight to improve.