Any thoughts on the Lenovo legion tower 5i?

Im completely new to pc's and i have no idea what to do.Im planning to get a gaming pc. Should i just build my own for the same price about $1500 cad ,or should i get this lenovo legion for about $1500 cad ,probably with taxes, but and if i build my own would you guys be able to recommend any or give any advice? ( ´∀｀ )b