The one I use is below and it sets up on the trampolines of a Hobie TI.
Once you get how that works, then you can see that they have some adaptations of that tent which include rain fly, etc. They make these tents for the military so all of the colors are desert brown, camo, etc. This things literally pops open and you're pretty much done. Go to the link below and click on the Video tab and then on the video link.
The company below creates a free standing, self-erecting bug net tent called the IBNS.
I can't claim the tent I use is the best, but for my purposes, I haven't found anything better.