Yes, on it for about a month now I think together with Metformin and gliclazide.
At first great results, my dawn phenomenon spike was gone the first day, came back a little the next and is almost back to normal now although it still seems a little lower and a little shorter than before.
My BS levels throughout the day where markedly lower at the start but are also returning to "normal" it seems. So either my body is getting used to it or something other is interfering. But certainly the first days/weeks the impact was significant. So at least be prepared for some serieus extra testing and be carefull. Certainly if you are on other meds then metformine that may cause hypo's.