Are link cables really that bad?

I see a lot of hate around link cables on the sub, I was going to buy one for half life alyx but that seems to be ill advised here. I live in an apartment which doesn't support virtual desktop and prevents additional access points like routers from being added so it's my only option. The INIU cable i was considering is only £17 or so and I feel a wired connection would be far better than whatever 50mbps 2.4Ghz wireless connection I would be able to get in theory anyway.