There's an image in the guide. It's a little outdated but is still about 95% accurate. Alcoves don't get warded consistently unless for some reason the enemy support is using them constantly to cheese and it keeps working.

I actually think it's pretty good in solo queue after the changes they recently made to TK. Before, it lost a lot of its power with the rework but I think it's much stronger now.

dam bro how are in the future like that

Yes!