Hahah metro lol.
Nah mate that shit is basically useless there.
I'd say you if you're without a car (like me) and relying on public buses (they're totally fine) book something around Palma, like any area between Cala Major and Can Pastilla/Arenal. The first area being WAY nicer than the latter. The latter has more raves if that's what you're into tho.
I'd tho suggest to rent a car at least for a few days cos there's a bunch of stuff (beaches, spots) in the Alcudia / East area.
If you're stuck in Palma and surrounding it's cool as well, there's a skatepark, a DIY, that beautiful plaza from Thrasher Plazacation and it's a city, so there's spots. Kinda popping in the summer, it's fun.
Two precious advices:
Beware the heat if you're going in the summer, it's no joke mate.
Avoid Magaluf at ALL costs if you don't wanna spend your holiday in a Spanish Newcastle Upon Tyne or any twat ridden UK coastal town that they forgot to bomb come armageddon come.
Have fun!! Place is the shit!!