Not very impressed by the lower end products I have bought.
I find the locks on the hardcore padlocks a real pain to open, the key fails to engage all the time. In the cold and wet it is very annoying! The locks however are VERY tough and the ground anchors are good, though a little pricey.
I bought a screamer disc- don’t bother, in the cold the battery fails in about a week and makes a low buzzing noise only audible by dogs.