I took this on a 3 week holiday, it was perfect for strapping my tote bag to my carry on. I really loved it but unfortunately it started to fall apart after week 1. It was still usable until the end of the trip but I will need to purchase a new one for my next trip. I would still say it was worth every cent, I found that I could tuck my jacket under the elastic if I needed to take it off and I always had a free hand to carry a coffee etc.. I will buy again as it was a life saver.
I purchased 2 of these. One worked really well and one I didn't check the tightening mechanism properly and the clip fell off during our travels. The one that I didn't break worked fantastic though and I would think about getting another one again