"how is the car"
Depends on which one it is, and the owners personal experience. Which will NOT be equal to your own, so that's pointless to ask.
"is it worth for the price"
Depends on the cost, and the condition of each individual vehicle. You didn't specify anything at all, so that's a completely vague question.
"which model is good"
Depends on the condition of the vehicle you're looking at. If I say a 1980 model is good, it doesn't mean you'll find a good condition one, does it?
"got attactive look"
You tell us. We don't know what's attractive to YOU. And it's stupid to buy a car based on what's attractive to others.
"what things to consider while buying a car"
Year, condition, service history, emissions, title, carfax/autocheck, having a mechanic check it out, etc and so forth. Never bought a car before?
"does it fall under a high end car.."
Not really. You can buy a used 1980's style for under $5000. Not exactly "high end".... Newer ones will run you a bit more, but again, you weren't specific at all.