After not camping for 22 years I started again three years ago. I've been amazed at how much better tents are now. Even the £80 Coleman I started with was better than the top range stuff from the 80s.
After trying a few tents my criteria was;
Two door for organisation
No permanent mesh, the Coleman could get draughty.
Sleep across the door, I find this far better for getting in and out and it gives more accessible porch space.
Less flappy than the tunnel tents I tried (including Hilliberg)
I bought a Terra Nova Solar 2.2, after 26 nights in it I'm well pleased. The flatter roof and steep ends mean there's more usable space than the floor plan would suggest. The two porches are great, I keep all the stuff in one and use the other as the entrance, which means I don't have to bring much into the inner tent.
it's not perfect, rain can form a pool on the flat roof (though that's never been a problem) Pitching inner first takes more planning when done in the rain. I takes careful adjustment to minimise condensation.
The only Hilleberg that met my criteria is the Allak, I was tempted, but the weight and price put me off. If I was going on an extended tour I'd have considered something bigger and tougher, maybe the Hilleberg Staika.
I'd agree with rualexander that no tent is likely to last 6 years of constant use, if nothing else that amount of UV will probably kill it. And if you're using it all the time, you're less likely to take the care with it as someone using occasionally. The advantage of a quality tent is you should be able to get spares.
