At that weight I’d be very surprised if the poles lasted long. The Argos pro-action solo tents (if they still stock them) are pretty solid at just over 2kg and often available for under £20. Better hydrostatic head too I believe.
I ordered one of these as I thought for £20 with a warranty it was worth a shot.
Just put it up in my front room and it certainly seems ace for £20! The poles do look a bit fragile and I was nervous bending them into the sockets, but I think as long as you are careful putting it up it should be ok.
It’s smaller than I imagined, but just about big enough for me to lie down comfortably, I’m 6’2″. Not much room for gear inside but you could stash between the outer/inner.
Pack size was very impressive, weight is good. Highly recommended for the price! Will report back when I’ve used it outside.