DV has a reviewed the shotgun mic AT’s BP 4029.Has anyone used it or if someone can suggest a better mic then ECM 678 which I am currently using.

I've used this mic for a couple of years and it has been great. I have a different workflow now but it was so much better at events. It used to be an AT835ST. I imagine it hasn't changed much but I would buy it again even if it wasn't upgraded. Make sure you buy a Y adaptor if you plan on using a lapel mic or something else at the same time.