Default Is Google Now working AND useful for you?

I know GNow kills battery due to the constant GPS use, but I was willing to give it a try if it "help" me with my life activities. However, the result has been less than impressive:

1). Weather
Always off by 5-10 degrees (California)

2). Public Transportation
Always informed me of the "nearest" train station, which I do NOT use and I use the other one (BART in California)

3). Package tracking
Never worked for me, especially now Amazon stop including the tracking number in their email.

So what else is GNow used for? How does that working out for you?
Google Nexus 5 4G LTE
Stock ROM - rooted
Official Jelly Bean 4.4.2

Nexus 7 (2013)
Stock[/B] ROM - rooted
Official Jelly Bean 4.3

Galaxy Note 8.0
Google Nexus 7 Tablet - Official Google JellyBean 4.2
AT&T Galaxy Note with 4G LTE - Official AT&T Ice Cream Sandwich 4.0.4
AT&T Galaxy S4 Active with 4G LTE - Official AT&T Jelly Bean 4.2