So now have two 1x15s,sound nice and big. Didn't play it super loud but seems to handle the low b well too which is good to know.
Weight wise they are for me on the limit, 22ish kg but can use two arms to make it a lot easier to carry.
Cosmetically they both seem good and can't see anything obvious.
Tried it with my G3 and my stingray sterling sub 5,whatever it's called and both did well.
Currently in progress of putting a band together so won't be able to really crank them up for a month or two but will definitely post in here about them.
I think the only thing I've noticed is if you have your ear faced towards the tweeter there's a bit of hiss but turn to look at it face on and it pretty much goes. The description says it's a variable tweeter like the 2x10 but the 15s don't have one, which I would have liked as with every other cab I've had with a tweeter I've turned it off.
But overall I'm happy with them