T and P series is aparently good, normal L is decent, but others are terrible (yoga, x, ideapad, etc.). But I haven’t used TP-s myself. I did use an Ideapad and it’s terrible (no upgradability, falling apart metal chassis (how the hell does metal break), no key-travel (feels like hitting a rock while typing) and it has a shitload of mediatek hardware which is a pain on linux (but I haven’t tested it as it’s my dad’s).