I have an SAS New Defender - VERY adjustable, VERY strong and VERY quick to put on!
I tried a similar one, luckily whilst still in the car park, after 5mins of juggling I took it back and said if you can fit this in under 1 min I'll have it... they couldn't!!!
So DO see if you can fit it easily before buying/leaving, my SAS came from Towsure and once set to the right width and size is very quick to fit.