MT900 1-person Dome Trekking Tent

I have 15y old Decathlon tent (an older 2-person ultralight) with 0 issues (other than a missing pole that I now use a trekking pole for, weight saving by accident). Alps, Pyrenees, Andes, Norway, Wales,... This tent has seen a lot of bad and cold weather. I also have a newer 1-person tent and again, no issues camping at low temperatures, but this tent is only 3 years old. MT900 both though, so you do pay a bit more.

I have 4, they're all brilliant, the fresh and black range was a game changer with kids, we have the air 4 person fresh and black and its great for my family, so far its about 5 years old used 3 - 4 times a year and still working and waterproof. I one of the 3 man pop up fresh and blacks which gets more use when I go without family and its solid, my oldest one from them is a decade old bought as an emergency Le Mans tent when my old eurohike gave up. I totally rate them over anything else in the near price range. The only ones that don't work are the super light solo hiker tent range, but they can be forgiven for that.

If you have Decathlon: MT900. Light weight and does what it should do since some years for me.

X mid 2's are meant to be the boy. Decathlon mt900's are amazing too. My mate just got a Robens Aster pro 2 and that looks solid think it was £150 ish

Decathlon's trek 900 series is actualy amazing for the price - their 900g down sleeping bag is around €120, their 40L pack is under 1kg for €80, and they've got those MT900 tents listed in OP's comment that are solid trekking pole shelters.