I use a BA cooper spur UL2. It's alright, easy to setup and enough room in the vestibule or inside the tents for my bags. I've stayed dry in the rain, it relatively light and work fine. They are a bit expensive but have had great luck for many nights.
I'm sure there are some others that are solid, I've only had a handful of tents. I refuse to do any single man tents or bivvy sacks, not comfortable and being able to sit-up is key to being comfortable.
I had one memorable night, dumping rain, Oregon coast....sat in my Bivvy trying to read for 3 hours before falling asleep, never again.