I like the kitchen! nice a big, straight onto the 'garden' although that wouldn't be anything like enough garden for me.
I'm not too far from Pound Hill, and agree it's a nice enough area - shops, station, green spaces not too far - but I wouldn't want to live there, too close to Creepy Crawley, and as PP said, the airport is all but dead atm, and a huge percent of people in this area rely on the airport for work.
It's not under the flightpath.
With half-a-mill£ I'd look at Horsham town, or Redhill (again, I'd not want to live there, but it's ok) or Horley - all on the London Bridge or Victoria trainline.