We have the Sunncamp 260 and we are generally pleased with it. As posted elsewhere, you can't get a good seal down the sides of the van and we've added eyelets along the bottom of the mudflaps as we found it hard to get a good seal on the bottom when on sloping pitches (our caravan height is at the top of the specified range). It now takes a bit longer to peg out but it's worth it. It is very easy to erect and take down (we can do it single handed if necessary) and it stays up even in high winds. The packed bag is fairly compact and will easily fit under the caravan when not in use such as on overnight stops.
We bought it as we can't afford a full awning yet but sometimes wish we'd gone for the 390 for the extra space. Overall though, happy with purchase.