I should also note that I got rid of the large HEAVY table and use two sectioned pieces of wood to cover open area when traveling and only one piece when using the short queen mattress - I'm a big guy 250+ and there's plenty of room sleeping. It's only my wife and I and we use a light small folding table we got from BJ's.
An ABSOLUTE MUST DO MOD on 176T is creating a backrest towards the tent and then folding mattress in half and storing in tent during the day. This creates a U shaped couch which is GREAT for watching TV, eating etc. Without this mod we would get neck cramps trying to watch TV. There are some discussions on how to do this.
Also, an observation is that the 176T is not as sound (and temperature) insulated as other models ... But then I sleep well and I'm not big on winter camping. I have a small ceramic 120v heater which works great.
If you want my (2010) dimensions, let me know.