First let me say my wife and I have looked at poked and prodded just about every TH on the market over the past several years. Some manufacturers build cheaper models and some really good solid models.The one main thing you are going to seriously need to consider is weight cap all the toys,gear,and water etc...etc.. The commander has some weight so make sure what you consider buying can handle the weight and avoid overloading it can cause alot of headaches later. And dont count out manufacturers that have gone out of business alot of companies have considering the times. And yes I would stay away from WW for alot of reasons. Anyway all travel trailers are built cheap to keep the weight down so when you are looking at used or new consider quality such as cabinets, stainless or plastic sinks...etc.etc. Even the axles alot of companies were using cheap axles and adding three to make up for it. Also this is a big one get dirty and look under at mainly the beams dont buy anything with holes in the beems to save weight (lightning holes) look at how the leveling jacks are mounted I have seen alot of TH with sheetmetal screws holding them on. Let me finish buy saying talk to who is selling what you are looking to buy and ask questions to see if they will tell you if they packed it full of alot of toys possibly overloading it. pulled it through some rough terrain.so.on.so.fourth. Even go as far as asking about a technician looking at it and see their reaction. As far as manufactures look at Eclipse(attitude,stellar) Fleetwood(toybox,redline.etc.)also Sierra not sure who the manufacturer is. Hope this helps and good luck take your time it is exhausting and frustrating been there.