Been out here for almost 10 years and I really enjoy it. I work from home when I'm not traveling, so I don't have to deal w/ much traffic during the morning/evening rush hours. 281 (going north or south) is going to be a pain until the construction is complete. I usually try to use Blanco to get to/from 1604 unless I need to go somewhere north of 1604 on 281.
I don't have kids, but I have heard a lot of good things about the nearby Comal ISD schools and know a handful of teachers that have good things to say about them. There are also a couple of private schools off Blanco if you have younger kids and private schools are a necessity.
If you are in Comal ISD area, you'll benefit from lower property taxes than if you were in NEISD, in addition to lower taxes for being outside of SA city limits. There has been talk for a long time about annexing Timberwood Park, but from the conversations I've had this is not likely to happen any time soon.
The closest grocery store for me is the HEB at Wilderness Oak and Hardy Oak (~3 mi from Borgfeld and Canyon Golf), but there is a Shell station on Canyon Golf that is like a mini grocery store if you need something in a pinch. You can also go north to 46 and 281 where there is another HEB and a Wal-Mart.
If parks are your thing, there is Bullis County Park at Borgfeld and Old Blanco, and a decent dog park w/ walking trails on Wilderness Oak (Panther Springs Park).
I'll try to check back here to see if you have any questions.