I use teamwork for every project, small, medium or big size (up to 600mb is my experience) with AC 16.
I don't get "serious" teamwork errors since a couple of years.
I think that the teamwork implemented in Archicad is a great way to manage large shared file. And it works great even over the Internet.
AC27 latest hotfix
Win 10 Pro 64bit
Double XEON 14 CORES (tot 28 physical cores)
32GB RAM - SSD 256GB - Nvidia Quadro K620
Display DELL 25'' 2560x1440
www.almadw.it