Not tried that one but we have a Montana 6. Bought it second hand and it’s been well used but the quality is excellent so I’d recommend Outwell as a brand based on this one tent.
They do need a lot of boot space though! As well as the large roller bag it’ll come in it will have a heavy pole bag with lots of steel poles, ours also came with the carpet, footprint, and a massive bag of pegs all of which take up more space.
If we go for a weekend our Touran is so full the dog gets consigned to the passenger footwell. (lots of food and beer also mind!). Oh, and it takes two to put it up, shouldn’t be a problem with 8 and 12 year olds though.