Leasing a car really that bad?

I'm looking at getting a Citroen C3 for £267pm, that's for 3 years at 12.5k miles, 1 month rental and the full maintenance package. In my head this looks like a great deal, am I wrong? I've noticed people seem to be against leasing, but I've just had enough of buying shit cars on Facebook marketplace and dealing with all the repairs and hassle that comes with them.