We LOVE ours! :-)
We have the 2015 267, and we tow it with our 2008 Suburban Z71 with no problems. :-) (However, it definitely feels it when we're going up steep roads in the Rocky Mountains)
We are a family of 5. We took the trailer for a month-long road trip last summer- Colorado, Southern Indiana, Georgia, Florida, Louisiana, Texas, and back home, and we LOVED every minute of it! We felt like the storage was great for a trailer (I spent a lot of time organizing before we left). We can't say enough great things about the trailer! Our only complaint is that it doesn't have the outdoor shower, and it doesn't have the thermal package because we want to be in it all year now! :-)
We got the X chocks, and we don't have any noticeable rocking. However, I'm going to look into the Strong Arm Stabilizer Kit out of curiosity- thanks Jcat3!