Welcome to the forums.
I am completely satisfied with my Hennessy. In fact I have 2 of them now, the original bottom entry and a zip. If you are close to 6' tall, or taller, I would recomend the Explorer rather than the Expedition. I am 6'1 and tested my brother's Expedition. I could have slept in it, but I would not have been as comfortable as in the larger Explorer.
The stock tarp is small, but they do work. I have spent a few rainy nights under one.
If you can get to a group hang near you to check out your options, you will not have any trouble getting people to show off their set up.