Well, I would say my honeymoon lasted AT LEAST a full year.. That entire first year I had a insulin to carb ratio of 1:22, now it is 1:14. I was able to eat up to 10 or 15g of carbs without needing insulin at all, still never had any spikes, or lows.. it was strange but my body just seems to 'correct' for any mistake I may have made.
During most of that year I did nothing special, and it wasn't until around month 8 or 9 that I started looking into Dr. Berstein and low carb, at which point i reduced my carb intake.
I don't know how others are affected by diabetes, but mine seems very predictable. So far i have never had any " OMG whats happening with me?' moments.
Its always been a flat line all night long, and then up after meals coming back down to rest at around 4.5-5mmol/L. Based on this i have to suspect that I am still in my honeymoon. Obviously if i inject the wrong amount or count my carbs incorrectly i go up after the meal and stay up, but for the last 6 months or so i have been weighing everything i eat, eating low carb, injecting 15 prior to eating, and eating pretty much the same 'meals' everyday, and its REALLY helped.
I was diagnosed in May 2014, and was on MDI for my entire first year, after my one year anniversary its policy with my doctor to go on a pump, so i went with a Vibe and Dexcom system, and its been SIGNIFICANTLY easier.