Pavel, you're right about the "more than one tent" approach. I bought the Moment DW as a one-man (me) tent for cycling. For other uses--canoeing, motorcycle camping, two-person camping--I use my MSR Hubba Hubba. It's worked well for five years, and is of reasonable weight & bulk, at just over 2 kg. It came at a reasonable price too. There are some limits to its design -- it really needs fly-sheet venting (which the Tarptent has), and I'd prefer something which could be pitched as fly+inner in the rain, like the Hilleberg and the Tarptent. I compensate for these shortcomings by using a sil-nylon tarp because the weight isn't critical. The Moment DW is light enough that I can even take along a small tarp as well, and still be under 1.5 kg total.
There are always trade-offs among weight, durability, price, space, and planned use. I've been lucky that I've had reasonably good tents, with no disasters, or even major hassles. The tradeoffs have generally worked for me--but then, I've not done mid-winter camping, nor even had to contend with high-veld thunderstorms in a tent. At this stage of life, I'm looking for designs that seem to address the issues of weight, fly venting, and inner+fly pitching, at a reasonable price. I don't need a 4-season tent, or an expedition tent.
Am planning a short trip in the hills NW of Ottawa in early June, so we'll see how this ultra-light gear works in buggy country (that's black-fly country, not horse-and-buggy country...) Look for a report in a month or so.