We got a Vango diablo 600 for family car based camping that comes into that price range. Lasted 6 years so far, about 3 weeks per year on average, with kids jumping all over it. Good for few more years yet I think, touch wood.
It’s blimmin big tent, but lots of room is good for family camping when it rains. We’ve had 18 in the living area! It’s got 2 big bedrooms, and a completely sheltered porch good for storage, cooking in bad weather and so on. Front and back entrance. Integral ground sheet is good. I’d look for all those things in a family tent.
It’s relatively easy to put up – I can do it myself at a push, but it’s flysheet last, and no matter how fast you are, I’d think at least 20-30 mins of time before you’d get the flysheet over. So if it’s raining, that’s a lot of wetness to consider. Ditto when taking it down, and it’s too big to dry out in our back garden.
If I was buying another, I’d look for something that allows for fly sheet first or at the same time.
Decathlon do big tents you can pretty much just throw up now. Probably a good cheapish option?