galaxy note 4 used or lg g flex2??

hi im new on xda, i am going to buy a new phone and i am between galaxy note 4 (used) good condition for 410$ or lg g flex 2 32 gb (new) 345$. i find intresting the stylus but i dont know if i will use it much. i dont care of the screen size or the screen resolution, i just want a phone with high performance and a durable phone for like 2-3 years. I listen that the g flex 2 is much better with 5.1.1but i want to know if it still overheating. So if you have a g flex 2 pls coment your experience with the divice or if you are a well knowing person on android deevicis pls coment wich you will pick. thanks!