I've got the MSR Elixir 2.
Nothing much to compare it to, since the last tents I've used, I used over 20 years ago, at which point they were easily 20+ years old - We're talking canvas cloth and thick poles. Things have certainly shaped up since then.
Suppose the MSR Hubba Hubba 2 is lighter, and maybe I've been lucky to not have the seams fail, like I've seen some complain about. I like it well enough, but I gather it'd be hard to dislike a tent, since it means you got a place to stay the night and get out of the rain.
Easy to pitch, plenty of space (easily fit two big dudes, no homo, and a dog), nice little pockets to stash my stuff in, and nice big vestibules.
Bought it for a trip where I was told I'd need a tent. Out of all the things I brought, the tent was the only thing I didn't need, but at least I had a decent tent, which gave me an excuse to go on longer trips out. Haven't tested it under any seriously strenuous conditions, but it does keep regular rain out.
It's hard to justify buying another tent when I already have a perfectly serviceable one, but the thought of a very light 1-man tent like the Durston X-Mid 1 does tickle my fancy.