The Epi Neverfull is heavier than the canvas version, but I still find it to be very comfortable, even when full. Not too heavy for me. The straps soften over time and are also quite comfortable for me.
I've had my fuchsia one for nearly 8 years and I still love it. It is indeed heavier than the canvas but in my opinion a better option as it keeps its structure so no bag shapers required, it's leather and Epi is pretty much indestructible and finally they are discreet and not as ubiquitous as the canvas version.
I have been using my indigo one for the past few weeks. I also have my DA NF ready to go next to it but it’s been really rainy here. I love this bag in epi!!! It’s so subtle and more structured than the canvas but still has some flexibility. I also love the microfiber interior and pochette to use as a grab and go. I got caught in the rain last week and this just dried it off as good as new. I’ve been complimented on this multiple times and nobody has noticed this as a NF even though they own aa canvas version. It’s great having a discreet bag. No issues loading this up including laptop. Do not miss lack of inside pocket. Weight is no issue. It’s heavier but still find it a light bag overall.