A Royal Enfield will never be a Japanese bike (at least I hope not) I have gotten bored to death with newer Japanese bikes. I have a 2013 B5, bought new, and have a little over 700 miles on it. So far the only problem has been a loose wire that got chewed up by the rear tire. I repaired it, and rerouted it to prevent that from happening again. The fit and finish is far from being Japanese quality, but to me that gives it character, as does the sound and feel. I expect it to be fairly reliable if not abused. I do not intend to ride mine over 60 mph, or take long trips on it.
They still come with an old fashioned flooded battery and a non O-ring chain, which I am keeping, at least for now. I am old enough to remember when all bikes came that way, and it is not an issue for me.
I also have a Genuine Stella, an '09 2 stroke. I fried the top end at just over 300 miles, the starter switch fell apart on the way home from the dealer, and I had a $200 stator fail. I have since removed the electric start, it is now kick only. I have a little over 10,000 miles on it. I love riding it, for much the same reasons as the RE. It's a brand new old bike.