Where Can I Get Legitimate Assignment Help Online?

I need trustworthy online assignment help that is timely and provides original work. Truthfully, there are so many sites out there that it’s hard to know which ones are really trustworthy. I keep seeing ads, and I just can't be certain who is legit. Has anyone had a good experience with a service they would actually recommend, like for real, not just a "yeah it was fine" kind of thing. If you have names or anything, please share.