Ive been using tents for about ten years. You can't beat the portability aspect. I'm currently setting them up in a new location after a change in residence. Thankfully, no issues with zippers.
Started with a SJ DR80.
It's the oldest at 10 years.
Main gripe is the size of the ports are smallish, ~5 inches. Even a small tent should accept 6" ducting. It's held up well over the years, with no issues other than the Velcro strips getting "tired".
Other ones are SJ DR120's.
A little over 8 years on the oldest of these. Vents are better at 6", but for this size tent, I'd prefer 8".
One of them had a few pinhole leaks where the metallizing on the inside seemed thin, but not a problem.
All in all, I'm happy with them. They've surprised me. At first I was concerned about the way the corners were put together with the plastic pieces, but no issues yet, and I hang a good bit of weight from the top, too.