Bottom line: vastly more comfortable than a mummy bag.
Pros:
Great deal when purchased during the two for one sale; functions perfectly and easily with a hammock as an under- or top-quilt with the included suspension cords; snaps up with a second quilt to make an even warmer blanket; the fabric is veeery comfortable; and does it all with vegan synthetic insulation, which was a requirement for me.
Cons:
I had a snap fall off before making it out camping, which can happen (customer service was very helpful and promptly sent out a replacement snap which I will have to take somewhere to have installed by someone with the necessary tools, which is an inconvenience and an added expense); synthetic insulation is heavier and bulkier than down (which is a trade off I was aware of and accepted for ethical and financial reasons); I bought the expander to allow the quilt to function as a sleeping bag, but I found it to be a tight and awkward retrofit (the quilt would still need to be a lot wider to function comfortably as a sleeping bag when folded in half lengthwise and snapped up with the expander, and the expander is itself relatively bulky); the accompanying compression sack has a soft canvas lip that isn't quite rigid enough to not come undone.
Bottom line: if you are down averse (as I am, for both ethical and financial reasons), this is a very functional piece of equipment at a great price (when purchased during the two for one sale). The many snaps are convenient, but are also that many more components that can (and, in my case, did) fail. For that reason, I felt four out of five stars was appropriate. On the upside, one snap failing won't significantly decrease the functionality of the otherwise great quilt).