I own one of the overpriced homes in Tustin Field II -- where's my strawman?? haha. If I had to do it over (in my dreams), I would not buy in TF II.
I'll answer your questions before I list my reasons.
<strong>Noise: </strong> Not really a concern, since the house is well insulated from any noise intrusion from trains, planes and autos. Many people ask about the train, but that's a non-issue from this neighborhood. I used to live in Harvard Square (just down the street on Harvard/Walnut) and I couldn't hear the trains either. Perhaps if you were living closer to the tracks in Tustin Field I or Park Lane developments - noise could be an issue.
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Jamboree: </strong> From my standpoint, I can't hear much road traffic either. Of course, when another 2000 homes are built on the Jamboree corridor along with the build out of the shopping center (The District), I'd worry more about the traffic. It'll be seen whether Jamboree will be clogged up or not. Sometimes, I have to take the 405 in the morning, and at around 8AM - it has taken me 30 minutes just to get to the freeway itself! So, forget the noise, worry about the traffic!!!
Now, for my reasons of disliking TF II, Columbus Square/Grove area -- prices notwithstanding:
<strong>Parking:</strong> In many of the developments, parking is restricted to one side of the street due to narrow lanes (fire codes). So, you can imagine not being able to park in front of your own homes. I'm lucky that I live on a wider street with 2-sided parking, but most of the streets are restricted to single-side parking. I was so accustomed to the large wide streets that Irvine is known for... until now.
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Affordable Housing: </strong> About 1/3 of TF II is affordable housing. Which makes for some unruly neighbors. Sad to say, but there is a difference between someone paying $1M for a home and the neighbor across the street paying $100K for their home (albeit a home 1/2 the size). Nonetheless, pride of ownership is lacking. This situation has brought families with way too many people living in the homes with too many cars. Thus, causing parking problems for everyone. Because these affordable homes are smaller and lacking storage space, most folks prefer to use their garage for storing things and without a driveway, they park on the streets. It's just a pet peeve every time I enter the neighborhood and there are cars lined up and down the streets making it more apartment-like than SFRs. I guess ppl are bringing their apartment mentality (i.e no-pride of ownership) into a SFR neighborhood.
A better deal would be Harvard Square, if you don't mind buying a slightly older home. Most were built in 1997-1999. These homes range from 1750 SF to about 3400 SF. The development is gated, with a private park (great for kids), wide streets, pride of ownership and a great sense of community among the residents. I guess, when homes prices rebound in 5 or 6 years, we would look to get out of TF II and back to Harvard Square for its peace and tranquility -- something that doesn't exist in the higher density neighborhoods of Columbus Sq/Gr or Tustin Field II.
Regardless of what happens.... buying a home should not be in your mind for another 3 or 4 years! unless you can find one in TF II for $600K.
My 2 cents for what it's worth... probably 1 cent.