Bit late to the party, but my wife and I recently got the Strat Li too. Figured we didn't spend a heap of money on our planned Canada trip, so we'll get another tent.
Only got the solid inner. Have used it a couple of times now. Pitching has gone more smoothly than I expected, although probably still has room for improvement. Dealt with a bit of wind and rain easily on one night, although noted there was more breeze flowing through compared to our Scarp 2. Sides of the fly don't pitch as close to the ground.
Contrary to Coiman's experience though, I'm definitely finding it to be on the tight side inside. Especially compared to the Scarp 2 which may be a bit unfair. I'm 185cm, and when I'm laying on a thick air mat like a Ether Lite it's pretty unavoidable to be making a lot of contact with the inner.
Only very early experiences though, and for the weight I'm definitely willing to keep experimenting.
Build quality seems excellent as I'd expect from Tarptent. I love the magnetic keeper straps for the fly, but I'm a bit confounded as to why they still persist with the silly elastic tie's for the inner keepers. Probably my most hated feature of the Scarp 2 as well. Every time I use it I tell myself I'll figure something better out for this but never get around to it.
Sandy soil made us realise how critical the pegging is. Should have brought bigger pegs this day.
Both inner and outer were encrusted with ice this night, so I was getting a lot brushing off onto my sleeping bag and head. But the conditions were horrendous for condensation. Zero wind.