Anyone have an Atlas rooflight?

In my search for a 1000mm by 2000mm flat rooflight I came across the Atlas range as one of the cheaper options that still looks quite good (at least on their catalogue). Yard Direct are selling them, including a kerb, in the colours I need and with a "free" upgrade to neutral solar control glass, for £1k inc VAT. This is similar to roof maker, quite a bit cheaper than the prices I've got from Sunsquare, and slightly more expensive than glass squad. Though it's not clear to me if glass squad and roofmaker includes the upstand, I think not, so probably price is equivalent to glass squad and actually cheaper than roofmaker.

So my question is, where does Atlas lie in the hierarchy of rooflights compared to say sunsquare, keylite, roofmaker and glass squad? Is it good quality, or best avoided? I haven't mentioned Velux and Fakro because I don't believe they make flat skylights in the 1000mm by 2000mm size.