The Zero S 8.5 is a light bike which makes it easier for new riders, plus there is no shifting which is friendlier to new riders too. The only downside I can think of is that the bike is expensive and new riders tend to drop bikes so that could get more expensive than buying a used 250r or something like that which if you dropped it, you could brush it off and keep going.
I owned a 2011 S and now a 2013 S. I bought both as demos with just a couple hundred miles on them and full warranties. I actually like demos better, cause you get to ride it and see exactly how the bike you are interested in performs. With a gas bike, you might worry how someone broke the bike in, but with an electric bike there is no breaking in period. If there were any issues with the bike like something not working right, the dealer would have fixed that too. No surprises in other words.
You can usually make a better deal on demos or the previous year's new bikes early January when the new model year bikes come out. In Jan. also you can compare the new model year to the previous year because more than once, when the new models came out, people who bought the year-old model wished they hadn't cause the new models were improved a lot. Last year toward the end of the year, Zero stopped shipping 2013s, so there weren't many 2013s left in Oct, Nov. I bought my 2013 S in June and it turned out to be lucky since the 2014 S didn't change much from the 2013s if you want the 8.5. People who wanted the race bike or the added storage found it was better to wait until the 2014s came out.
There should be some rumors circulating soon about changes for 2015, so by Oct/Nov you may already have an idea if you want to wait on a new model or buy the 2014.
I would love to be able to lane split, but alas, Texas doesn't allow it. There are a couple of YouTube videos of someone lane splitting on a Zero and it looks like a real time saver...for an experienced rider of course. Good luck. Oh yes, I have owned 30 motorcycles, more recently a Triumph Street Triple r, Gixxer 1000, Ninja 300, FZ-07...and my 2013 Zero S is my favorite bike EVER!.....fast, light, easy to ride, cheap to run, quiet, no warming it up, has some storage, won't overheat in stop and go traffic.