There are so many existing threads for this and I'm too lazy to write up my take on it again. Without any specifics, there are pros and cons to both, and there's a pretty big polarization for one way or the other from different forum members. For myself, I'm running both in parallel because there are some things one does better, and vice-versa. I started out with NVR then tried BI. Huge learning curve for me, made worse by having to un-learn some of the NVR things. I thought I'd eventually go to BI only, and I am using it as my main platform now, but I find myself occasionally going to the NVR when investigating something in detail, and it's easier for me to use for remote access. I've resigned myself to using both of them indefinitely. I have a few more cameras than channels on the 16 channel NVR, so a few are usable on BI only. If you're at 14 cameras from the git-go, consider getting a 32 channel NVR for not a whole lot more dollars. Wish I had done that originally.