No complaints so far on our S510U. It wasn't designed for developers though so I decided to splurge for a RAM upgrade. The jump from 4GB to 16GB is very refreshing. Will check game performance later when my son comes home.

Total cost: 11,200 for 2 8GB RAM sticks, 336 labor at MSI-ECS BGC (very good service, nearest parking is at Revel Bar or Uptown)

Next upgrade plan: Samsung EVO 512GB SSD