Used this tent for three straight months on the road on a European cycle tour. We stayed nice and comfortable in some of the most extreme rain and windstorms I have ever witnessed.
With only two of us travelling, we were able to fit 100% of our gear inside with us and it would have easily slept a third person. Vestibules are not overly big, but functional.
Make sure to guy out the fly or else it does tend to get some condensation underneath.
After a lot of use, we did start to have some fairly minor leakage from the floor, but all in all, we loved this tent and wouldn't hesitate to buy it again.