There are at least 6 keys (escape, q, left arrow, numpad 8, and numpad enter) on the keyboard that are unresponsive, or at least that require A LOT of patience to work with, practically right out of the box. I see online that this is a common problem with Predator Helios 300’s. I am very disappointed because I heard very good opinions about this laptop only to find out certain keys are unusable (and yes, I uninstalled and reinstalled the KB driver). Aside with it having Norton security by default (Which I uninstalled immediately), there are really no other complaints I have after 1 week of owning. It does run rather loud and hot when pushing the hardware to a certain point.  But it is unacceptable to not have all functioning keys for the amount of money you spend on a laptop. This review is written before I contact Acer about the unresponsive key problem that I have.