I car camp, so size and weight isn't much of an issue... until you get to the camp site. I have a 10x10 that was good with my ex, my two kids and myself along with all our gear for some time. as the kids got older, we got them their own smaller tent. The only problem was some of the more out of the way sites or best tent spots within the site wasn't big enough for such a large tent. That said, I don't regret going with something with more room, especially on rainy days.
I'm also a major fan of LL Bean brand tents. Never failed me in the worst of weather and lasts a very long time.
Mine is an older model of this one...
Northwoods 6-Person Cabin Tent: Tents | Free Shipping at L.L.Bean