Convert regular wide
The convert has the best of both worlds warm night it’s in quilt mode, cold nights sleeping bag. Super comfortable I absolutely love this bag so far. I have not been able to take it down to real cold to know where I find the 10 degree rating to be comfortable. The zipper has worked great for me as long as you have the bag straight when you zip it up. I got mine in black outer red inner both the 10d material.
Really light, warm, and MAYBE a little sticky
As of this posting, I've used the bag on 3 day trip on the Appalachian Trail. I have the 0 degree bag, and did not expect to get cold in the 20-30 degree nights on the trail. I was not disappointed, and stayed warm while using it. I'm 6' and bought the Xlong 7' bag because I wanted to have the option of pulling the bag over my head, something not easily done with smaller versions of the Convert because it lacks the hood found on most traditional mummy bags.
A few other points:
The zipper gets caught on fabric, and needs to be guided carefully to avoid this. No permanent damage is likely to occur; it's just inconvenient.
Sometimes I felt sticky while using the bag. The weather was not very humid, nor was it very dry either. I am not sure whether the sticky feeling was caused or exacerbated by the bag at all.