Hye evryone Im planning to get HP 6001TX after hari raya so theres a few questions id like to ask to all dv6 owners b4 getting mine

1. is the keyboard flex really that bad? like the asus N series?
2. say if in the future id like to change my keyboard, where can i get it ?
3. the 6770m on dv6 is better than GT555m on msi ge620dx and asus n55sf rite ?

thats it and hopefully this will help clear my doubts