The article has arrived just 15 days after having been ordered. It is light but strong - just as I had envisaged. I find the description on the website to be very accurate. I have measured it and think it will fit nicely into Ryanair's sizer. I am please with my purchase.
I've just returned from the airport where I tried it out - full of books - in Ryanair's bag sizer. It all fits very well and under no pressure whatsoever. A good purchase for a carry on cabin bag.