Yeah I like my 2010 Double Rainbow. My favorite aspect is it's small footprint. You only need enough space to fit the floor to get a good pitch.
Also, you don't need poles to set-up.
If you do have poles, it can also be utilized for the tent (rain porch, extra main pole support, freestanding option).
Lots of room for most couples/duos. Solo, it's literally a palace. Nice big duo mesh walls/doors for views and good relations with tent mate.
I"ve only tried two UL tents, so... no expert, but in my limited experience, the ease of set-up and flexibility make it worth the extra pound +/- a few ounces (if even that).
Of course, I wouldn't be adverse to checking out a Cuben version.
Pretty nifty design. Kinda goes well with my OCD.