Bike repair stands: the good, the bad and the stable.

TOPEAK PREPSTAND MAX WORKSTAND

I've got one from Decathlon that's the same sort of design as this, and wouldn't recommend it.
The area the BB rests on is rubbery and renders the bike unstable for anything more than tweaking the brakes or gears, and the clamp is a ratchet strap that doesn't tighten adequately.
(On the upside, it was only £30)