I have the DE in the PM size and it has great slouch. I'm not sure why some people complain about it. I guess compared to mono, the canvas is stiffer, but I like it - it feels more substantial. I had also heard about how it slips off the shoulder, but this hasn't happened to me at all. I really love this bag. Some people have issues with trim wrinkling and/or chipping, so I will have to keep an eye on it. I think wrinkling is normal, as it is with vachetta, but chipping would definitely bother me. The DE is less maintenance than mono, but if you already have a DE NF, I understand why you would want a mono piece. Vachetta may worry us, but getting patina is a fun process.