State bicycles frames look startlingly similar to Mango’s offerings…
I needed a SS commuter as we approached winter last year, and ended up with a cheapy State bike. Not sure if there was much difference between them and the Mango ones.
It’s heavy, or at least it feels it when you try to lift it, but once riding it’s fine. It’s done about 1,500km since November, and has just this week had its first consumable replaced (new brake pads). It lives in a bike locker (outside) at both ends of my commute, so goes for weeks without the slightest maintenance.
The wheel nuts are made of very cheaply plated steel, and have rusted, and the wheels do weigh a ton, but not sure how much of a weight-saving I’d make if I got another pair, as presumably much of the weight is from the hub with a solid steel threaded axle.