Some things to think about-
It's hard to tell from the pictures, but it doesn't seem to have a bathtub floor, which is not something I'd want for any winter tent (and really any tent I get period).
The sides are also entirely mesh. If you get much of any wind, you'll have spindrift fly under the vestibule and fill your tent which will drive you bonkers and get you wet.
I have the older version of the BD hilight, which at the time was rated as a 3 season tent, as was the firstlight initially. They are now listed as 4 season, and come made with nano-shield instead, but the design appears to be nearly the same. My hilight is longer and wider than my itent (also older), but the current specs list the hilight as being wider on one end and shorter on the other than the firstlight.
I push my hilight into the winter for some stuff and it's happy enough, but it doesn't suffer from the issues I noted. If you want a lightweight single wall tent consider the hilight or firstlight. Firstlight is smaller and sturdier and sheds snow better, but my hilight has been decent at shedding snow when I've taken it out. The hilight is also worse in wind due to its profile, but I've had mine in sustained 40mph gusting to 55 in Moab. Guyed out it was alright, but not the quietest thing around, either. Setup is extremely easy and can be done from inside the tent. Condensation control has been excellent for me here in CO/WYO/UT, but haven't taken mine to super wet climates other than a single night in NZ, so you might have some condensation in more humid climates.
If you get one of these, be aware that they will not come seam taped or sealed. YOU MUST DO THIS before use. They come with Silnet to do so.
While these are listed as 4 season tents, in most ways they seem and feel more like a 3 season. Like all UL stuff, they're a bit fragile. The nice thing about them is that they're up to handling winter, but also won't punish you for weight during the summer, so you can use them year round.