One thing to look out for is the amount of reflection of this particular series (65). If you have a lot of uncontrollable light in your viewing room, you may wish to look at a different lcd with a matte fish.
Otherwise, you should really elaborate more on your particular application when asking "how's this tv?" If the set looks good to you and your dad, and even better when compared to other sets, then go for it.
As far as Samsung being a "middle-tier" lcd brand, I couldn't disagree more. Just my $.02...