We've got one and really like it. It's strong and key for use in the UK is that it's been totally waterproof even in some heavy rain.
Costs are relative - something like a fiamma f45s will cost you £450 - £600 and is not designed to be waterproof but will provides an area of sun shade - as long as it's not windy.
This will cost you about £250 with a couple of Robens telescopic poles etc and provides flexible sun and rain protection over a larger area - even in strong winds, and more privacy due to the shape.
Takes about 5 minutes to put it up and down including pegging, but less if you're going out for the day as I leave the pegs in place. Here's an image of ours in use in normal configuration with 2 poles.
-Edit- we use it for short trips and when touring, we plan to get a small drive-away awning for week long camping.
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