Glass SP won't affect the visual or clarity of the screen. In fact you won't even notice if there is any SP is applied.

Finally! my UAG - Navigator case is came!     

Short Review:

• The finish is extremely well done!
  
• Nice to hold, non-slip at all!
  
• Well done button holding part, the best cut out I ever seen.
  
• Elegance Look!
  
• No finger magnet!
  
• Feel strong hold and not heavy and in nice thickness size.
  
• Came with extra screen protector.
  
• 3rd hole is confirm there already.
  
• The best case I ever have for my Note 3, this will be my 1st favor case now.
  

Caution:

• I should pick others color, the white is nice but it might easier get dirt due to the surface finish.
  

I rate it the best case I ever have.

My favor case, top the best:

• 1. UAG - Navigator
  
• 2. Spigen Slim Armor
  
• 3. Otterbox Defender
  
• 4. Otterbox Commuter
  
• 5. ROCK Joyful Free Series
  

If compare only with Otterbox Commuter, I find UAG is better, better design, better build quality, better cut out.