We bought 2 x Sub Zero G (second generation) cases, from the net, bit cheaper that Matalan.
Then we ordered 2 x small cabin cases to go with them, these from Argos and were on sale 40% off.
perfect for Thomsons and airlines with low cabin weights.
Also good for Easyjet and Ryan air as the cases fit their max size.
Lightest cases ever, very strong, stronger than they looked when empty.
We took them to Corfu and they stood up well to the trip, just a couple of marks.
They come with a 10 year guarantee and a light weight but strong frame.
Note; the guarantee won't cover damage, this is always down to the airlines involved.
Buy the best size for todays planes.
The 20-23 kg. is Medium, and packing them out adds strength.
Fabric marks a little but is strong, no problems with frame, fabric or wheels re: wear & tear.
I recommend them for the San Stefanos type holidays -
we found we could take much more than normal (around 4kg extra between us), and the cases are easy to use, and easy on the wheels.
The 2 wheel (roller-blade type wheels), cases are far better than those older models with 4 small caster type wheels.