[SR-Users] Rather noob question about functionality of Kamailio as an SBC

Hello, I have read the article at: https://likewise.am/2013/03/10/kamailio-as-an-sbc-session-border-controller/ Since this was written back in 2013, I was wondering if there has been any changes/additions/improvements in Kamailio since then that would have an impact on the conclusions made in the above article? Where I work we are in the process of 1) determining what functionality we need now and in the not too distant future 2) based on the choices made in #1, do we need a fully functional "professional" SBC or can we get away with a "pedestrian" SBC and use an application like Kamailio. Generalizations are ok of course but pointers to specifics would be awesome if possible.  I know this list is not here to do my homework for me.  I will be doing more research myself but I am sure there are many folks here that have gone down this road already and am hoping to benefit form their experience while I build my own knowledge. Thanks, John