We have 25.2 Axis and are happy with it.
The E450 Ford chassis is great and reliable.
As far as the Thor part, you get what you pay for. It's not a top of the line RV but uses all of the standard RV components found in most value based RVs. In other words cheap and light duty.
If your handy and not looking for expert fit and finish it will work for you.
We have a 2017, purchased in 2018, and have spent 4 winters snow birding with it. 30,000 trouble free chassis miles towing a pickup behind it.