51'C-52'C is quite normal for V Nitro bro.
Yap, can confirmed that its normal. I got 2 white spots on my screen previously. And yeah the coating sucks too. Thats why i sell the laptop. Lol.

im gonna get this laptop soon. cant decide whether shud get the one with gtx860 or gtx960. does the newer graphic card worth the money?

If yours is like mine.. You can add on the M2 SSD drive and clone the OS onto it, then format the current 1TB and use as a "Data" drive. Both drives will remain inside the laptop.. The OS is typically the C: drive currently located on the default 1TB SSHD drive that shipped with the laptop. SSHD stands for solid-state hybrid drive. It's a traditional hard disk with a small amount of solid-state storage built in, typically 8GB. So the 8GB hybrid part, IMO, is a section (memory) that simulates the effects of an SSD.

Basic explanation... 

Do a search within this thread or at least my previous posts.. I believe I and another user who successfully installed an SSD, have discussed the steps. Word of advice, make sure to buy the right fit and buy local also. The difference in costs to shipping from overseas is negligible. Also, to avoid warranty issues, make sure to reconfirm from Acer that adding in an SSD won't void the warranty. If possible have the installation & cloning done by an expert.

I'm a DIY type person too.. However, I've done extensive reading and seen videos, all showing that opening up and closing this laptop is a real pain. You have to get in from the top, removing the keyboard, etc.. Can I risk it? Sure, but it's not worth it, at least to me. You might have better hardware tearing and building skills than I, so go ahead..?