First, my tablet performs nicely. the hardware and its speed is very nice. What I don't like about it is the stupid preinstalled bloatware that Samsung forced on me and will not allow me to COMPLETELY uninstall. You would think when you dole out as much cash a a tablet or a phone costs you would be the ONLY ONE to decide what gets installed or uninstalled from it. That exact practice is what totally turned me away from the Galaxy phone line and to the Nexus line where I have full control over what is and isn't on it. The only way to get rid of the bloatware is to root my tablet which would void the warranty and the extended warranty I have.
The tablet is fairly quick but with some lag at times. The build quality could be a little better. The WiFi seems to be a little slow. It does have a great screen.
I bought myself a Galaxy Tab S 10.5 to replace my ancient laptop. My wife borrowed it so much in place of I Pad I had to buy myself a second one. Amazing multi tasking, gray 8 speed and graphics makes it unbeatable in my eyes