I own a Shangri-La 5 and a Mountain Laurel Designs Super Mid. I'd recommend them both.
Pyramids have some nice features, lots of room for the weight, you can stand up in them, easy to set up, no floor (Super Mid) or removable floor (Shangri-La) so you don't have to worry about tracking in dirt.
One down side is they are not freestanding but I haven't found that to be an issue in most places.
For $300 the Shangri-La gives you a lot of options. At 5.67 lbs you get a "fly" , fully enclosed inner mesh "nest" with floor, includes lines, pole and 8 stakes with a lot of room. In non-buggy conditions, leave the nest at home and have a dry shelter comfortable for 4 adults and a little gear for 2.88 lbs. You can even leave the pole at home and use a branch to save another 13 oz.