Writing/Assignment website options

Hello!

I'm newly signed up here ;)

I'm enrolled in several online writing courses for the semester and I was looking to patronize a high quality writing service. I narrowed down my options to the following;

1. Graduate Writer
2. Custom Dissertation
3. Masters Essays
4. Essay Tigers and
5. Speedy paper.

I've looked a few forums and got some very negative reviews for options 2 and 5 and mild criticisms of option 3. Any feedback on Acematiks and/or Essay Tigers? Would very much be appreciated. Thanks