Sooo, I have mixed feelings about this tent. The concept is great. It pops up great and it's not too heavy. The price is good for an instant tent. With that said, it's just a little small in the floor dimensions! I'm 5'8" and as you can see from the picture, my head is against one side and my toes are the other side. The reason this isn't good is because most inflatable sleeping pads are at least 6', often measuring at 74-76" in length, which is going to push the walls out, stretching the tent. Secondly, the bottoms of the window covers do not attach with Velcro or anything, only zipper down the sides, so this could be a problem.
As far as an outdoor/beach shelter, I think this would be great! There is reflective silver on the inside of the fabric, which will help reflect radiated heat (feeling heat inside from the dark fabric on the outside). I really like the super large front porch awning, and how you connect it to another identical tent if you wanted.
As far as being waterproof, I was unable to test this, but I didn't see any light coming through the stitching, and you could seam seal them if you wanted to be extra sure. I will tell you that if you try to leave the tent during rain, or while there is water on the tent, you WILL get water dripping in the tent, just due to the dome shape, as the top of the door overhangs the tent bottom when open.
The instant-up up pole structure is very sturdy. Just staking down the 4 corners was really all you need unless you want to use the awning. The tent itself will be very wind resistant. The awning will be not be. Even guyed out with heavy duty stakes, there is just too much fabric in the air acting like a sail.
To setup, you just stand up the folded tent, fold down each corner to the ground, then pull up the center. Everything kind of opens like an umbrella from that point. So that part is very easy. As far as the awning goes, you will definitely need two people. One to hold a pole up, the second person to guy it out. By the way, the poles are pretty durable but not lightweight. Each section completely separates but has a other metal clip that keeps them from easily falling out once fitted together.
In summary, I think it's a great casual use tent for beaches, picnics, and light camping use. Currently priced at $113, I think it's a great value. Just know that it will be kind of cramped for sleeping in, especially if you are taller than 5'8.