I have a HH Exp model with the classic (bottom entry) and love it.
I started out with an ENO DBL and while the lay was good, due to some limited mobility issues I had challenges getting in/out of it. Someone on here suggested I try out an HH with classic entry and that solved all my issues.
I am short so do not find the size of the Exp to be an issue. More room would be nice but is not required. I did have an issue with a my legs hurting up the back but after reading the forums I started laying at more of an angle and putting my pack/pillow under my legs and that issue was resolved.
I have a JRB Nest as an UQ and love it. It is cut specifically to fit the HH classic with a split in the UQ to match the classic entry. Like others have said it would be nice to have zippers on each side so I could pull the quilt up around my shoulders better but instead I just don't stake out the sides during cold weather and then the UQ wraps around me better. Some day I might invest in having the zipper mod done but not today
I continue to use the HH standard suspension. I motorcycle camp so weight is a non issue. What I have done recently is to tie a figure 8 on the bight http://www.youtube.com/watch?v=XNjF2oGPt90 then use a carbiner to attach to Atlas tree straps. Makes set up quicker for me.
I replaced the stock tarp with 10x10 BCUSA tarp or if weather is going to be really nasty I used a Kelty Noah 12x12. Both of these will allow me a sitting space under the tarp which is something the stock HH tarp does not.
I would purchase the HH set up again but I would purchase the tarp upgrade from the start.