I ordered and used CVT's 270 foxwing awning that looks like they're not selling anymore but have seen similar styling in other people's post including Nd4SpdSe's. My friend did a DIY awning from canvas that covered the back of his jeep only so we got a chance to compare the two. We've been on a 3 week trip up north with lots of rain as well and I've had the foxwing go through snow and sleet...but more about that below.
Pros:
1. Having the extra dry footprint was awesome. Especially if you have an RTT drop down one side and the foxwing wrap around the other side and back, I couldn't imagine a better way of staying out of the elements. I did all my cooking, on the road repairs, etc. from the back off my tailgate. I also have a dual swing arm tire carrier in the back so all my work tables and space are there so covering the back was a no brainer. I have a topper over my bed with windoors so having the sides covered either by awning or by the rtt was awesome at accessing the cab all the way around without getting soaked. My awning didn't quite reach to the second cab door so in and out of the cab was still a bit dicey.
2. My awning came with all the walls included. If you're moving around everyday, not practical to put walls up unless you're desperate for an element free zone. To be honest I've never put them up but they're available if I need them. I put up my RTT annex if I need that space. If I was in one place for longer, the walls would probably go up.
3. Holds up in moderate wind after tying everything down (no walls).
Cons:
1. Construction was poorly engineered. All the poles bolt onto this thin and flimsy piece of aluminium on one end of the awning. It bent the first time I deployed it in dry conditions without any wind. The weather stripping and fabric itself ripped after 3 weeks of almost daily setup, take down, and use. I believe this would be manufacturer dependent, though.
2. You're screwed in sleet/ice. I used it once where it snowed during the day but turned to sleet overnight which caused a layer of ice to build up. I was able to wack most of it off but the cover will not contain much more than the fabric and poles so I wasn't able to zip it all up when I left in the morning... bring spare ratchet straps.
3. Sometimes, the holes don't all match up to stick the posts and crossbeams together. Again, design dependent.
4. Sometimes placement can be finicky - ie. getting the back portion to line up with a tailgate. CVT now sells rhino rack's foxwing that seems to use a strap to cinch it up straight which looks like a good idea I'm planning on mcgyvering onto my current setup.
5. More space, weight, and money.
Summary:
Yes, I'd get a foxwing. Having that extra footprint was worth the issues. I got a new one covered under warranty and am currently doing some mods to reinforce the flimsy parts and will copy rhino rack's cinching system to get it flush with the back of my truck. Given that all the walls were included with mine, to me, it was worth the money. Are there better quality ones out there? Absolutely. Eezi-awns looks amazing. Had a chance to see how it worked with Xoverland's setup and it seems durable as well. Certainly better designed and built. My suggestion would be to find places where actually witness and try out the awnings from mounting to setup to take down and balance that with cost. Hope this helps!