Here was my experience at 32 with the ENO: I slept with a Thermarest Z-Lit Sol in the hammock, fleece socks, thermal underwear top and bottom, fleece sweat pants, and a down vest plus a balaclava. I was totally good until very early morning, where it became clear that where I wasn't on the pad I was cold. In my experience (and maybe I'm just using it wrong) my shoulder isn't well covered by the Jarbidge. But, overall I considered it a massive success and I wouldn't hesitate to do it again.
Now, I'm a cold sleeper. When I sleep in my bed I use a down comforter AND a Woolrich wool blanket in a room that's likely 70 degrees. And, when I sleep in the basement, I use the Jarbidge (not really necessary, but I use it) and a 20 degree synthetic bag as a top quilt. That's the bag I used outside to 32.
In a few days I plan a backwoods overnighter. I'm banking on my setup with the ENO and Jarbidge to take me down to 25-30 with the clothes I described above plus a bit more (including hot water bottle) just in case.