We just moved here from Florida in September and I must say that I highly recommend renting first and not buying until you can really learn the area and decide from there. We are absolutely not fond of renting, but I am so glad we made that decision because I have heard from many people that it's not easy to sell your home quickly if you end up buying in an area you later wish that you didnt. We are in Keller so I am very familiar with the area you are talking about.
That would concern me about the sex offenders, especially having children.
As far as the trains... VOWS is right near the tracks and trains are VERY busy going thru there. I dont live near the tracks so I dont know how that affects sleeping, etc, but that could affect resale.
Emergency centers... there is an Urgent Care facility right off 377 in Watauga which is probably less than 5 min from VOWS. When my daughter recently broke her arm, we went to Baylor ER in Grapevine, that was about 15 min down the road off Hwy 114. (and just to add.... they were WONDERFUL to deal with compared to the ER's in FL)
Do you know where you will be working once you get here? Traffic is a huge concern during conventional commute times. I work in Irving which is normally a 25 min drive with no traffic, but when I get off at 5, I am not home until 6:15ish. I hate it and I may look into working somewhere closer.
I have a friend that lives in VOWS and he likes it a lot, me personally, I would look around at all the other areas around because there is just so much to choose from out here and if you havent already moved here, you may feel cheated by buying so soon, and missing out on other opportunities. I have heard that there are a lot of houses to rent in VOWS, if we were considering moving to that neighborhood, we would probably try to rent in there first to get a true feel.
Good luck,
~D
