I’m still having good luck with my Naturehike tents (Cloud Up 2+ and the Star River, which is the same as the Mongar really). Mongar is a solid 2 person size, decent fabric denier and better weight than the 2 local brands. Quality is good but a couple of hundred out of the price range. The Cloud Up range is a little tight on space as someone over 6ft, would need to size up by one.
First Ascent Starlight 2 strikes me as the nicest entry level tent you can walk into a shop here and buy. Cheap, well sized one man and not a nightmare with two and not stupidly heavy. Haven’t had any trouble with one yet.
If solidity in the mountains is a big thing for you, maybe take a look at the Vango tents. Scottish company so they are largely designed assuming you are going to see some bad weather. Good price and weight if you actually wanted a robust one man.
My experience has been around paying attention to the weight, a tent is going to be one of the three heaviest things you carry and this stuff adds up quickly. There is nothing worse to me than hiking while exhausted and broken with overkill equipment. Space can be great if the weather is bad, look at sizing up vs the number of people who are regularly going to use the tent. If it is likely to be actually used by two people, more than one vestibule and door is a game changer.