I'll give a real reply to your question, get ready!
I was raised in Hatfield and have lived here for 19 years
The Good
-Lots of retail shops - Tesco and Asda, then you have things like boots, blockbuster, fish and chip shops, (applebys) Hairdressers, post office and that's about it.
- Very close to London, takes 20 mins if you take the fast train to get to KX
- St.Albans (best for pubs, has a club called Batchwood), Watford (Best for clubs, but does have a nice strip), Hartford (pubs) and Stevenage (100% clubs, Liquid, Envy, Chicagos, Jumpin Jacks) are all close and provide decent night life.
- Every takeaway you can imagine, KFC, Pizza Hut, Subway, Mcdonalds, Burger King. Also a kebab van called Hatfield's best kebabs
-The University here is better than average, yes I study there.
-Old Hatfield is beautiful
-Great Odeon Cinema that show's films in Digital
-New business park built with a very nice Gym
Bad Points
-No good clothing / technological shops (games, camera's, tv's) in the town centre, it was meant to be getting knocked down and completely revamped but that's not happening now with the recession..
-Too many yobs around the town center at night, there was a stabbing 4/5 years ago in which someone died.
- No nightlife, there is a place called the Kandi bar but it's awful
-Way too many immigrants, Polish here, Polish there. So many we have a frozen section in tesco dedicated to them
- Lot's of council houses
All in all, there's no place like home. However when i do have a stable job and a good income i will move out from Hatfield. My Dad would move now if he could but my mum's parents live here and my mum like's to be close
To all those saying Welwyn is so much better.....It really isn't.
Hope that helps