I'd recommend a 7'x7' or 8x8 for two people. Whenever the tent says "three person tent, it really means three people who have sex with each other or just two platonic people.
And "2 person" tents are not big enough for 2 adults unless you want to sleep on top of each other and leave your belongings outside. I have a 7'x4' tent though that is a pretty good size for 1 person & gear and would leave a little room for other stuff (canopy/cover, chairs) in your campsite.
Lightweight and compact, this Ozark Trail 9' x 8' sports dome is ideal as a backpacking tent or child's tent. Features GoBeDry rain protection, the EZ Glider zipper system plus 2 rooms, 2 footlockers, 2 hanging cup holders and a gear loft. Sleeps 3 to 4 people.
* Sleeps 3 to 4
* 9' x 8' tent has 2 rooms and a screen room with a detachable canopy for extra shade
* Unique EZ Glider System lets the zipper glide smoothly without catching on fabric
* Lightweight, compact and ideal as a backpacking tent or child's tent
* Stay dry and comfortable with the exclusive GoBeDry rain protection system
* Accessories include 2 organizer pockets, 2 hanging cup holders and a gear loft
The Coleman® 7-ft x 7-ft Sundome® tent brings you classic design that keeps you dry with the exclusive WeatherTec™ System. A rainfly covers the doors and windows, while shock-corded poles allow for a quick and easy set-up. This tent also includes a heavy-duty welcome mat, a Cool-Air™ port and separate storage bags for the tent, poles and stakes.
If you have $$$$ I suggest North Face...expensive, but really ultralight(Carry on), reliable and lasting. You'll not need a tent for the next 20 yrs. But if you don't have too much $$$ or you don't want to spend too much $$$ the guys here gave you a few really good options. Like Coleman.
I was in need of a tent and being that Ill be using it for more than just Coachella.... I spent some dough. $119
The Columbia Mt. Bachelor sleeps 3-4. It has great ventilation with windows and vents which combine to keep you comfortable and reduce condensation. With all the main fly and floor seams taped you can be assured of a dry tent. It is easy to set up with a fiberglass First-Up™ Frame that sets up in minutes by unfolding and locking in place. That means no threading sleeves and no clips. Sounds easy, it is. Extra features include a gear loft, storage pockets, sealed main fly and floor seams and a neat feature that lets you easily sweep debris and dirt from the tent.
* Sleeps 3-4
* Main fly and floor seams are factory taped for extreme weather protection.
* Bathtub Floor raises seams high off ground and Rain Shingle protects seams
* Polyester fly won't stretch and has better UV resistance
* Shockcorded fiberglass poles are sturdy
* Freestanding design is easy to set up
* First-Up™ Frame uses a hub with connected poles for fast and easy set up every time
* Quick release buckle system easily and quickly attaches fly
* No see um mesh on all 4 windows provides ventilation and keeps the bugs out
* 2 mesh interior pockets for organization and gear storage.
* 1 large 'D' door for easy access.
* Gear loft included
* Woven Reflective zipper pull
* Flashlight loop
* Tent, pole and stake bags included.
* Tent bag is expandable and has a handle for ease of packing
* Fire retardant.
I'm also from Chicago -- found the Coleman 7x7 sundome at the Sports Authority on Ontario for $25. It is plenty big enough for 2 people. It is large enough for our queen sized blow-up mattress, and still has a few feet left over on one side for a cooler and stuff.
It has lots of windows which I hope will help with airflow.