Welcome to the forum!
Typically, "Queen" in an RV is 5" shorter than a standard queen. Thor replaced the air beds in the Axis/Vegas with a mattress for 2016. The 2016 25.2 has a jack-knife style couch.
While you are shopping, check out the cost on a new 2016 versus the 2015 you are considering, either used or new. Pros and cons of a new rig have been discussed in other threads, as well as the improvements included in the 2016s, including a switch to the E-450 chassis.
I think we need to stop calling it "working from home" and start calling it "living at work!"