First-time longboard buyer? help!?

so i used to skateboard, but yesterday i tried my friend's longboard and i got the hang of it right away! she has the "Gravity Makai Drop Carve Maple 41". i really liked it but don't know if its best for me? i don't really have any place to go so i dont need it for transportation i guess! i just want to use it for fun, ride it in my neighborhood and down streets(downhill, but not really steep!). i want to learn to carve also, which is why i liked my friends. please help me!