These are very durable devices, made by Foxconn. Plus it's nice to have that £20,000 warranty (y)
Ikea Koppla seems to be a beeter deal (£9)
I've got this. It works nicely as an extension. That's pretty much all I can really say about it other than it feels fairly solid and well made.
Just a heads up; this, like any surge protector, won't make your electronics invincible if a lightning strike hits the mains. A lot of people see "surge protector" = "so I'm good during a thunderstorm". Always unplug; don't just switch off. https://www.quora.com/Do-surge-protectors-protect-electronics-during-a-lightning-storm