For tall folks (over 6 foot), I highly recommend a _longer_ hammock than the ENO series. ENO is a great hammock, but I find that talk folks can't get the best diagonal lay due to the minimal length (in comparison to other parachute nylon hammocks on the market).
Here's what happens when you increase the width but leave the length alone: the hammock begins to canoe, e.g., the side rails tighten creating a deep bucket seat. A lot of people who sleep in the double+ ENO hammocks tend to sleep in line or on a minimal diagonal (depends on how big/tall you are). Some people find the canoe lay comfortable; it is certainly more comfortable than the ground. The Speer hammock is designed to lay this way as well. The two major down sides are a tighter shoulder squeeze and leg hyperextension due to the banana effect.
If you can, try the hammock first. When I do my hammock demonstrations, I have multiple parachute hammocks on display for folks to try to get the right "fit." After a while doing this, I'm convinced that matching the person to the right hammock is a key factor in overall comfort. That said, I'll argue for any hammock over the ground. You'll often read about folks here on the forum who started with "Brand X" hammock and switch to "Brand Y" because it was "more comfortable." Amazing, but true.
I hope to have a post in the next few days where I can show the difference between all the parachute nylon hammocks side-by-side. It's a pretty amazing comparison.